1.640" Od .710" Id .040" Thick Hardened Steel Valve Spring Cups Ps8005 Springs then these billet aluminum oil

then these billet aluminum oil pumps pickup are the only way to go

Speedmaster fuel filters flow up to 90 gph

but it also extends the life of the clutch

That's just what our Speedmaster guideplate sets do

This upgraded combination elevates the standard in electronic fuel injection

1.640" Od .710" Id .040" Thick Hardened Steel Valve Spring Cups Ps8005 Springs then these billet aluminum oilAs 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.