Isky Cams 1.490 Valve Springs HASZ15BL 1985-1995 GMC C1500

1985-1995 GMC C1500

This allows racers to reliably increase boost and advance ignition timing-without using high-octane racing fuel-for power gains of up to 20%

C4-R5 Valve

Incorrect alignment or an unbalanced condition puts excessive strain on the pump's shaft and/or bearing and will result in early failure of the shaft and/or bearing

This wheel has a slightly larger diameter than most Banjo Style Wheels in the market today

Isky Cams 1.490 Valve Springs HASZ15BL 1985-1995 GMC C1500Product Description: Valve Spring Single Spring Damper 370 lb in Spring Rate 1. 100 in Coil Bind 1. 490 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