quick view Manley Performance Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11680H-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 Volkswagen 1.7L Type IV Exhaust Valve Kit - 40.00mm Head Dia. 4.606in O/A Length, 0.3130in - 11663-4 MSRP: $119.80 $94.99 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 Volkswagen 1.7L Type IV Exhaust Valve Kit - 38.00mm Head Dia. 4.606in O/A Length, 0.3130in - 11659B-4 MSRP: $119.80 $94.99 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 Volkswagen Rabbit Exhaust Valve Kit - 34.00mm Head Dia. 3.976in O/A Length, 0.3130in Stem - 11657-4 MSRP: $119.80 $94.99 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 Volkswagen 1.2L Type I Exhaust Valve Kit 37.50mm Head Dia. 4.405in O/A Length, 0.3130in Stem - 11655B-4 MSRP: $119.80 $94.99 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 Volkswagen 1.2L Type I Intake Valve Kit - 43.70mm Head Dia. 4.405in O/A Length, 0.3130in Stem - 11654B-4 MSRP: $119.80 $94.99 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 Volkswagen 1.2L Type I Intake Valve Kit - 42.00mm Head Dia. 4.405in O/A Length, 0.3130in Stem - 11652B-4 MSRP: $119.80 $94.99 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 Volkswagen 1.2L Type I Exhaust Valve Kit 33.00mm Head Dia. 4.405in O/A Length, 0.3130in Stem - 11651-4 MSRP: $119.80 $94.99 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 Volkswagen 1.2L Type I Exhaust Valve Kit 32.00mm Head Dia. 4.405in O/A Length, 0.3130in Stem - 11649B-4 MSRP: $119.80 $94.99 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 Dodge 8.0L Viper V10 Exhaust Valve Kit - 1.600in Head Dia. 5.97mm O/A Length, 0.3110in Stem - 11647-10 MSRP: $315.02 $249.99 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 Ford 4.6L Modular V8 intake Valve Kit - 46.83mm Head Dia. 4.630in O/A Length, 0.2750in Stem - 11638B-8 MSRP: $257.20 $203.99 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 Ford 4.6L Modular V8 intake Valve Kit - 46.83mm Head Dia. 4.630in O/A Length, 0.2750in Stem - 11638-8 MSRP: $257.20 $203.99 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 Ford 4.6L Modular V8 Exhaust Valve Kit - 36.00mm Head Dia. 4.650in O/A Length, 0.2740in Stem - 11637B-8 MSRP: $257.20 $203.99 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 Ford 4.6L Modular V8 intake Valve Kit - 44.50mm Head Dia. 4.705in O/A Length, 0.2750in Stem - 11636B-8 MSRP: $257.20 $203.99 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 Ford 4.6L Modular V8 Exhaust Valve Kit - 34.00mm Head Dia. 4.650in O/A Length, 0.2740in Stem - 11635-8 MSRP: $257.20 $203.99 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