Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy - Set of 8 11845-8 Pressure Plate Bolt Kit Available in four (4) sizes

Available in four (4) sizes 15"/ 16"/ 17"/ 18-1/2"

They are precision CNC machined for unmatched fit and finish

Mercon(R) SP and Mercon(R)

Black Paint / Zinc Oxide

super strong 6063 T6 aluminum alloy tubes

Manley Severe Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.522 in Long - Big Block Chevy - Set of 8 11845-8 Pressure Plate Bolt Kit Available in four (4) sizesProduct Description: Exhaust Valve Severe 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