110 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Black (Pair) Designed to work with PCE628

Designed to work with PCE628

use Speedmaster cast iron cylinder heads

these caps have a one way valve

which is much stronger than stock steel and mates better with an aluminum case

These Speedmaster flexplate dust covers have brilliant polish finish and are made from high quality materials

110 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Black (Pair) Designed to work with PCE628Speedmaster 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.