Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy Full Face Helmet Contoured venturri inlet offers balanced

Contoured venturri inlet offers balanced airflow for increased horsepower

Features: UHF Range - 450-470

1971 Ford Torino 500 CID 302 Naturally Aspirated GAS

Ford Thick Film Ignition (TFI) coverage includes both modulators mounted on the distributor and remote mount applications

2008 - 2011 Mercedes-Benz C300

Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy Full Face Helmet Contoured venturri inlet offers balancedProduct Description: Exhaust Valve Severe Duty 1. 880 in Head 0. 342 in Valve Stem 5. 422 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