Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy - Set of 8 11811-8 R07C08 3-1/2 in V-Band Flange

3-1/2 in V-Band Flange

Tremec TKO-500 / 600 and T56

composite glass-fiber core and backed with a high temp super strong pressure sensitive backing

The lightweight 1" tubes

Diaphragm Kit

Manley Severe Duty Exhaust Valve - 1.900 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy - Set of 8 11811-8 R07C08 3-1/2 in V-Band FlangeProduct Description: Exhaust Valve Severe Duty 1. 900 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