LS1 Rocker Arms Upgraded Trunion Kit LS 4.8 5.3 5.7 6.0 Trunnion LS2 LS6 LR4 LQ9LS1 Rocker Arms Upgraded Trunion Kit LS 4. 8 5. 3 5. 7 6. 0 Trunnion LS2 LS6 LR4 LQ9 Fitment: LS1 LS2 LS6 LR4 Vortec 5300 LM7 L59 LM4 L33 4. 8 5. 3 5. 7 6. 0 Engines This kit includes: 16 LS Series Rocker Arms 16 rocker arm trunnions LS type retrofit 32 rocker arm bearings LS type retrofit 32 rocker arm retaining rings LS type retrofit