Manley NexTek Triple Valve Spring - 733 lb/in Spring Rate - 1.142 in Coil Bind - 1.677 in OD - Set of 16 RG10004 4L)/350 (5

4L)/350 (5

Brand: Holley EFI

All belt mounting ends are wrap-around and anchor hardware (bolt-in

including 4L65E

die formed mounts are offered in wide and narrow versions

Manley NexTek Triple Valve Spring - 733 lb/in Spring Rate - 1.142 in Coil Bind - 1.677 in OD - Set of 16 RG10004 4L)/350 (5Product Description: Valve Spring NexTek Triple Spring 733 lb in Spring Rate 1. 142 in Coil Bind 1. 677 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