Isky Cams Valve Springs - Dual w/Damper - Color Code: Natural/Yellow - Outer O.D./I.D.: 1.005"/1.430" - Inner O.D./I.D: .725"/1.115" End Link tests have shown that subjects

tests have shown that subjects experience feelings of lightheadedness and reduced dexterity

Factory Stock

1963-1966 Chevrolet Suburban

2020-2022 GMC Sierra 3500 HD Crew Cab Pickup Vehicle does not have carpeted factory storage box

Isky Cams Valve Springs - Dual w/Damper - Color Code: Natural/Yellow - Outer O.D./I.D.: 1.005"/1.430" - Inner O.D./I.D: .725"/1.115" End Link tests have shown that subjectsIsky has valve springs for street or all out competition in single, dual, and multi coil designs. 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, Isky