Manley Race Master Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy - Set of 8 Socks All Bell Racing helmets are

All Bell Racing helmets are engineered and manufactured in a 60

1 degrees per psi accuracy

Pump features a -6AN pressure fitting and a -10AN return fitting

Solid Steel Construction

Manley Race Master Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy - Set of 8 Socks All Bell Racing helmets areProduct Description: Exhaust Valve Race Master 1. 880 in Head 0. 342 in Valve Stem 5. 422 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