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Designed for precision fitment and easy installation
self-service-able to easily change your stall speed right at home
These kits provide easy pan installation and prolonged gasket life
Speedmaster safety loops surround the driveshaft with a heavy-gauge steel cage that restrains the shaft after a failure
1.640" Od .710" Id .040" Thick Hardened Steel Valve Spring Cups Ps8005 Springs Designed for precision fitment andAs 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.
