Designed for maximum performance and features interference-wound double chrome silicone springs and heat treated steel base washersAvailable in a complete set for one engineUse OEM keepersSteel retainersWill work with up to .600" lift camsDesigned for maximum performance and features interference-wound double chrome silicone springs and heat treated steel base washers Available in a complete set for one engine Use OEM keepers Steel retainersWill work with up to .600" lift cams