Manley Severe Duty Intake Valve - 2.300 in Head - 0.342 in Valve Stem - 5.494 in Long - Big Block Chevy - Set of 8 1969992 1975-1991 GMC Jimmy

1975-1991 GMC Jimmy

1964-1981 Pontiac Catalina

Typical gains average of 15-20 horsepower

5/16 Engine Plate

An on/off switch will shut the tool off automatically if it's left idle for more than 6 minutes

Manley Severe Duty Intake Valve - 2.300 in Head - 0.342 in Valve Stem - 5.494 in Long - Big Block Chevy - Set of 8 1969992 1975-1991 GMC JimmyProduct Description: Intake Valve Severe Duty 2. 300 in Head 0. 342 in Valve Stem 5. 494 in Long Stainless Big Block Chevy Set of 8 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 University, our