Isky Cams Dual Valve Springs - 1.570" BR20033 Dwell Control Circuit

Dwell Control Circuit

motion ratio

The center-mounted adjuster uses both left and right hand threads

Chevrolet Mark-IV Big Block V8

1980-1991 Oldsmobile Cutlass Cruiser

Isky Cams Dual Valve Springs - 1.570" BR20033 Dwell Control CircuitProduct Description: Valve Spring RAD 9000 Series Dual Spring w Damper 560 lb in Spring Rate 1. 100 in Coil Bind 1. 570 in OD Universal 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