Comp Cams 13704-KIT GM LS7 & Gen V LT Rocker Arm Trunnion Upgrade KitKit includes: Heavy duty billet steel rocker arm trunnions High needle count roller bearings Retaining rings The COMP Cams GM LS7 Gen V LT Trunnion Upgrade Kit is designed to upgrade the stock needle bearings with full complement roller trunnions and will improve the reliability of your LS7 & Gen V LT rocker arms. A must when upgrading to a high performance camshaft or higher load valve springs