Quick view Details Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 MSRP: $395.52 Now: $296.64 View Details Compare Quick view Details Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 MSRP: $382.30 Now: $286.72 View Details Compare Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-8 MSRP: $716.57 Now: $537.42 View Details Compare Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11530-8 Manley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8) - 11530-8 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 Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11620H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12350H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12354H-8 Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12354H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11360H-8 Manley Chevrolet LS1intake Valve Kit - 2.000in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11360H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11362H-8 Manley Chevrolet LS1intake Valve Kit - 2.020in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11362H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11390H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11390H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11680H-8 Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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: $881.51 Now: $661.13 View Details Compare Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11398H-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11682-8 Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11682-8 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: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11350H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11350H-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: $716.57 Now: $537.42 View Details Compare Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected
Quick view Manley Performance | sku: MAN11684H-8 Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11684H-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: $881.51 Now: $661.13 View Details Compare Previous 18 19 20 21 22 23 24 25 26 27 28 Next Previous 18 19 20 21 22 23 24 25 26 27 28 Next Compare Selected