Isky Cams 1.490 Valve Springs HASZ15BL 1985-1995 GMC C1500

1985-1995 GMC C1500

quiet performance

C4-R5 Valve

Featuring a patented uninterrupted-flow design and multi-core technology

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

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