Isky Cams 1.570 Valve Springs RS003C0813 Also fits 71-76 Impala spindle

Also fits 71-76 Impala spindle

1981-1992 Ford F-250

Our Harmonic Balancer kit includes 7/16"

Max Effort

Mechanical / Liquid Filled Gauges

Isky Cams 1.570 Valve Springs RS003C0813 Also fits 71-76 Impala spindleProduct Description: Valve Spring RAD 9000 Dual Spring Damper 570 lb in Spring Rate 1. 130 in Coil Bind 1. 570 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