quick view Manley Performance Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11730-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chrysler Top Fuel Exhaust Valve Kit - 1.950in Head Dia. 5.120in O/A Length, 0.3715in Stem - 11729B-8 MSRP: $626.40 $496.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11728-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.365in O/A Length, 0.3415in Stem - 11725-8 MSRP: $652.80 $517.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11724-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Big Block Exhaust Valve Kit - 1.900in Head Dia. 5.522in O/A Length, 0.3715in Stem - 11723-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Big Block Intake Valve Kit - 2.250in Head Dia. 5.244in O/A Length, 0.3715in Stem - 11722-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.265in O/A Length, 0.3415in Stem - 11721-8 MSRP: $652.80 $517.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11720-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Big Block Intake Valve Kit - 2.190in Head Dia. 5.244in O/A Length, 0.3715in Stem - 11718-8 MSRP: $239.60 $189.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 1.720in Head Dia. 5.140in O/A Length, 0.3415in Stem - 11716-8 MSRP: $395.52 $313.99 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... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.165in O/A Length, 0.3415in Stem - 11715-8 MSRP: $652.80 $517.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.080in Head Dia. 5.110in O/A Length, 0.3110in Stem - 11714H-8 MSRP: $881.51 $698.99 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... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Intake Valve Kit - 2.080in Head Dia. 5.110in O/A Length, 0.3110in Stem - 11714-8 MSRP: $382.30 $302.99 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... Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Manley Performance Manley Chevrolet Small Block Exhaust Valve Kit - 1.625in Head Dia. 5.065in O/A Length, 0.3415in Stem - 11713-8 MSRP: $652.80 $517.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Wish List Add to My Wish List Create New Wish List Compare