450 lbs./in. Spring Rate 7" Tall Coil Over Shock Springs - Silver (Pair) When roller rocker arms are

When roller rocker arms are installed

Speedmaster has the quality and dependability you'd expect from an engine stand

With their compression-style design

a gilmer kit is a must for street or strip engines

450 lbs./in. Spring Rate 7" Tall Coil Over Shock Springs - Silver (Pair) When roller rocker arms areSpeedmaster 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.