Isky Cams RAD-9000 Valve Spring Dual Spring/Damper 550 lb/in Spring Rate 1.150" Coil Bind - 1.570" OD RS004C1515 1975-1997 Ford F-350

1975-1997 Ford F-350

Best-In-Class No Drone Quiet Cabin Driving Experience

Lightweight 1-1/2" x

CRA Super Series and PASS North/South competitors

Isky Cams RAD-9000 Valve Spring Dual Spring/Damper 550 lb/in Spring Rate 1.150" Coil Bind - 1.570" OD RS004C1515 1975-1997 Ford F-350Product Description: Valve Spring RAD 9000 Dual Spring Damper 550 lb in Spring Rate 1. 150 in Coil Bind 1. 570 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