Isky Cams Dual Valve Spring - 0.960 in Coil Bind - 1.240 in OD - Set of 16 Tap Standard pressure performance upgrade for

Standard pressure performance upgrade for the M-54D-S

5/8 in Pilot

BR Break-In

Works with stock factory carpet

Isky Cams Dual Valve Spring - 0.960 in Coil Bind - 1.240 in OD - Set of 16 Tap Standard pressure performance upgrade forProduct Description: Valve Spring Dual Spring 250 lb in Spring Rate 0. 960 in Coil Bind 1. 240 in OD Set of 16 As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve train components,