Quick view Details Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 MSRP: $239.60 Now: $179.69 View Details Compare Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 MSRP: $49.44 Now: $37.09 View Details Compare Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11826-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11826-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11882-8 Manley Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8) - 11882-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $382.30 Now: $286.72 View Details Compare Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11311-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.735in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11311-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11313-8 Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11313-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11310-8 Manley Chevrolet 409intake Valve Kit - 2.200in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11310-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11312-8 Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem - 11312-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11516-8 Manley Chevrolet 426 Hemi intake Valve Kit - 2.200in Head Dia. 5.490in O/A Length, 0.3100in Stem - 11516-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12359-8 Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O/A Length, 0.3136in Stem - 12359-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11707-1 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valve - Single - 11707-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11707-8 Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O/A Length Race Series Exhaust Valves -Set of 8 - 11707-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 View Details Compare Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12854-1 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single - 12854-1 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $49.44 Now: $37.09 View Details Compare Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected
Quick view Manley Performance | sku: MAN12854-8 Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8 - 12854-8 Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust... MSRP: $395.52 Now: $296.64 View Details Compare Previous 20 21 22 23 24 25 26 27 28 29 30 Next Previous 20 21 22 23 24 25 26 27 28 29 30 Next Compare Selected