Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy Headset Cable Lightweight billet 6061-T6 aluminum housing

Lightweight billet 6061-T6 aluminum housing and cover with a durable anodized hardcoat and high volume billet steel gears

LTW Retainers have a compound radius

Fuel Pressure regulator rebuild kit for Holley HLY12-841 and HLY12-842 fuel pressure regulatorsHolley has been the undisputed leader in fuel systems for over 100 years

Produces More Horsepower

Available in Youth 7X-Small to XS

Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy Headset Cable Lightweight billet 6061-T6 aluminum housingProduct Description: Exhaust Valve Severe Duty 1. 900 in Head 0. 342 in Valve Stem 5. 522 in Long Stainless Big Block Chevy Sold Individually Manley Performance high performance and racing engine parts have been powering winners since 1966. Since our inception in March 1966, Manley Performance Products has been at the forefront of the high performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown