Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy 11845-1 Metric to AN Fittings It features a built-in ram

It features a built-in ram air scoop that captures additional cool air from behind the front grille

The XSB004 attaches to your Camaro with polyurethane bushings

A wiring harness for each application is sold separately

Excellent Modulation And Release Characteristics

Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy 11845-1 Metric to AN Fittings It features a built-in ramProduct Description: Exhaust Valve Severe Duty 1. 880 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