Isky Cams Precision Tool Room Dual Valve Springs (Gold) - 1.570" O.D., .740" I.D. BR40034 11142Aeromotive Inc

11142Aeromotive Inc

1968-1984 Chevrolet K10 Suburban

(4) Vacuum Ports " (1) Each 1/4 NPT & 3/8 NPT & (2) 1/8 NPT w/ Indirect Baffled Signal

- Tube Size 1 5/8 in

Isky Cams Precision Tool Room Dual Valve Springs (Gold) - 1.570" O.D., .740" I.D. BR40034 11142Aeromotive IncTest proven for 1000 racing miles, Precision Tool Valve Springs feature the highest quality alloy wire and trade secret endurance processing. Great for Super Modifieds, ARCA, Grand National, NASCAR Trucks, Cup and applications up to 8800 RPM. 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