1.370" Od. 0.760" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs We want you to have

We want you to have reusable filter elements that outflow ordinary paper filters

Speedmaster HPC ignition coils are designed for high-rpm

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

These durable but lightweight aluminum pumps push up to 35 gallons of water per minute of coolant circulation

1.370" Od. 0.760" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs We want you to haveAs 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.