1.560" Od. 0.567" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs Speedmaster billet ball-milled rear view

Speedmaster billet ball-milled rear view mirrors are a beautiful

oil pan gaskets

performance and great value make these hardened input shafts an essential component for anyone looking to raise their transmission to the next level

The right choice is critical for your engine and your wallet--choose Speedmaster iron distributor gears

1.560" Od. 0.567" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs Speedmaster billet ball-milled rear viewAs 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.