Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy PTFE Hose End Spark duration of greater than

Spark duration of greater than 300 microseconds

1979-1984 GMC C2500 Suburban

100% recyclable

performance coated and roller cambearings are for use with Dart engine blocks

10 AN Male

Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy PTFE Hose End Spark duration of greater thanProduct 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