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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 MSRP: $257.20 Now: $192.91 View Details Compare Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-8 MSRP: $881.51 Now: $661.13 View Details Compare Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 MSRP: $29.94 Now: $22.45 View Details Compare Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Details Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 MSRP: $239.60 Now: $179.69 Add to Cart 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
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 Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12353-8 Manley Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter Race Master Exhaust Valves (Set of 8) - 12353-8 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: $257.20 Now: $192.91 View Details Compare Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN11688H-8 Manley Chevrolet LS7 intake Valve Kit - 2.205in Head Dia. 5.200in O/A Length, 0.3133in Stem - 11688H-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: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12345-1 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single - 12345-1 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $29.94 Now: $22.45 View Details Compare Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected × OK
Quick view Manley Performance | sku: MAN12345-8 Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8) - 12345-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected
Quick view Manley Performance | sku: MAN12348-8 Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) - 12348-8 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... MSRP: $239.60 Now: $179.69 Add to Cart Compare Previous 30 31 32 33 34 35 36 37 38 39 40 Next Previous 30 31 32 33 34 35 36 37 38 39 40 Next Compare Selected