Manley NexTek Dual Valve Spring - 800 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16 221457-16 23020BK Edelbrock first made these aluminum

Edelbrock first made these aluminum valve covers in the late '50s and they're still a classic

3 in Length

Switch Pros 12: Add a location for a Switch Pros 12 button controller

Front and Rear

Longer bar improves chassis reaction times

Manley NexTek Dual Valve Spring - 800 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16 221457-16 23020BK Edelbrock first made these aluminumProduct Description: Valve Spring NexTek Dual Spring 800 lb in Spring Rate 1. 130 in Coil Bind 1. 500 in OD Set of 16 Manley Performance high performance and racing engine parts have been powering winners since 1966. Since our inception in March 1966, Manley Performance Products has been at the forefront of the high performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown University, our journey began