Available with tool steel retainers under 7228TS-KIT.
Featuring our innovative natural damping conical valve springs for increased RPM, this GM LS spring kit includes a set of retainers, spring seats, seals and locks for a complete kit that can handle .615" lift from aggressive roller cams.
Complete Kit Allows Installation of Revolutionary Conical Valve Springs on Nearly Any GM LS. LS Conical Valve Spring Kits allow enthusiasts and builders to better harness the power of popular LS Race and street engine Applications.