1.560" Od. 0.567" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs These mounting blocks keep your

These mounting blocks keep your starter secured and properly adjusted

and 5-position tilt

or hot rod project

There's no better way to top off your street machine than with one of our Speedmaster street scoop

use Speedmaster cast iron cylinder heads

1.560" Od. 0.567" Id. 0.040" Thick Hardened Steel Valve Spring Cups Springs These mounting blocks keep yourAs 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.