Isky Cams Valve Spring Retainers - 7 Degree R01P003XXXL step spacers reducing to a

step spacers reducing to a 1/2" hole and cut to fit stock GM type mounts

1990-1994 Chevrolet Lumina

Clutch Spacer

Officially licensed Ford product

1979-1984 GMC C3500

Isky Cams Valve Spring Retainers - 7 Degree R01P003XXXL step spacers reducing to aProduct Description: Valve Spring Retainer 7 Degree 1. 080 in 0. 735 in OD Steps Dual Spring Chromoly 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 components,