Isky Cams SP-Series Dual Valve Spring / Damper - 415 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16 RU004004M the Performance Management Tool and

the Performance Management Tool and our new line of big rig and industrial products

Mandatory per NHRARule 8: 4

Different advance springs and stop bushings are supplied so you can choose from 24 curves

1968-1972 Dodge Charger

Isky Cams SP-Series Dual Valve Spring / Damper - 415 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16 RU004004M the Performance Management Tool andIsky Valve Springs are world famous for their reliability and long life. 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, Isky maintains a continuous engine