Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy PTFE Hose End 1979-1984 GMC C2500 Suburban

1979-1984 GMC C2500 Suburban

Spark duration of greater than 300 microseconds

Built in the USA

045" of the connecting rods and counterweights for best results

Made For Street/Strip Use

Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy PTFE Hose End 1979-1984 GMC C2500 SuburbanProduct Description: Exhaust Valve Severe Duty 1. 900 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