Manley Extreme Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy - Set of 8 Earl's 6 AN Male to 1/4

6 AN Male to 1/4 in NPT Male

350 lbs/in Spring Rate

Each flare is constructed of virtually indestructible

Pit Stop USA offers Flo-Fast 7

Manley Extreme Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy - Set of 8 Earl's 6 AN Male to 1/4Product Description: Exhaust Valve Extreme Duty 1. 880 in Head 0. 342 in Valve Stem 5. 522 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