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They're designed to be installed with no modifications
The copper gaskets help even out the flow between the head and header flange to minimize warping
These Speedmaster valve covers are an affordable and easy way to brighten up your engine
Speedmaster crankshafts are nitride-hardened
wall thickness and are formed from 4130 chromoly steel
170 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Silver (Pair) They're designed to be installedSpeedmaster coil springs are designed to withstand the high stress levels of modern suspensions. They're manufactured from high quality chrome silicone steel, heat treated and shot peened, and then powdercoated or plated for protection and appearance. Each spring is guaranteed to be within five percent of its advertised rate.
