1.370" Od. 0.760" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs Speedmaster flexplates will withstand the

Speedmaster flexplates will withstand the extreme power and rpm of today's engines

These scoops give you that classic Hilborn-style look with a polished aluminum body

Speedmaster carburetor brackets are precision-stamped and chrome plated for a functional

They are manufactured from anodized aluminum

Speedmaster 8000 distributors yield stable timing and spark delivery at any RPM

1.370" Od. 0.760" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs Speedmaster flexplates will withstand theAs with all other parts in the valvetrain, the area where the spring sits takes a beating. The old standard shims simply will not hold up to the extreme pressures and high rpm found in today's performance engines. Speedmaster offers this set of valve spring shims to solve this problem and eliminate failures.