1.640" Od .710" Id .040" Thick Hardened Steel Valve Spring Cups Ps8005 Springs Speedmaster aluminum timing covers are

Speedmaster aluminum timing covers are the perfect way to add strength and durability to the front of your engine

Speedmaster fuel filters flow up to 90 gph

This upgraded combination elevates the standard in electronic fuel injection

That's just what our Speedmaster guideplate sets do

1.640" Od .710" Id .040" Thick Hardened Steel Valve Spring Cups Ps8005 Springs Speedmaster aluminum timing covers areAs 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.