Designed for '11-'14 and '15+ 5.0L Coyote and Boss engines, this beehive spring kit offers increased valve control at high RPM while allowing for higher valve lift from performance cams. Includes...
This Dual Valve Spring Kit for LS engines includes carefully matched Dual Valve Springs, tool steel retainers, locks, seals and spring seats. With a .675? maximum lift, these COMP Cams Dual Valve...