Including properly matched quality dual valve springs, 7 degree locks, viton seals, hardened seats and chromemoly steel retainers, this spring kit is ready to bolt onto LS heads with aggressive cams with up to .660" valve lift.
See 26925TS-kit for kit with tool steel retainers.
GM LS 4.8, 5.3, 5.7, 6.0 and 6.2 Cathedral/Rectangle Port Engines. Excludes LS7.
