Required when upgrading to (EV1/Bosch style) performance Injectors on LS2, LS3, or L99 applications (not required to upgrade LS1 and LS6 applications).
COMP Cams Retrofit Trunnion Kits for GM LS Series
COMP Cams retrofit trunnion kits for GM LS Series engines are designed to convert stock LS Series rocker arms into captured roller trunnions for...