Street/Strip Dual Valve Spring For GM LSR™ Cams

Tested in conjunction with the radical COMP Cams® GM LSR™ Camshafts, these high performance valve springs are engineered specifically for street/strip hydraulic roller, some solid roller and some solid flat tappet racing applications. Highlighted by a 1.320" outside diameter and .675" maximum lift, this lightweight dual spring features a micro-peened finish that actually reduces stress in the valve train. It has a seat load of 129 @ 1.835", an open load of 470 @ 1.160" and a spring rate of 505 lbs./in. In addition, the small diameter of the spring increases harmonic frequency, enabling much better valve train control at higher rpm. (CJ)