Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.365 in Long - Small Block Chevy P237Z The unit is supplied with

The unit is supplied with a variety of rpm and timing modules

Chevrolet: Biscayne 63 - 69 7 L Engine

1957-1966 Jeep FC150

See 451000 for Breakaway and 451400 for StreetFighter

Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.365 in Long - Small Block Chevy P237Z The unit is supplied withProduct Description: Exhaust Valve Severe Duty 1. 600 in Head 0. 342 in Valve Stem 5. 365 in Long Stainless Small 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