Brian Tooley LS1 Rocker Arms with Upgraded Trunnion Kit Installed LS2 LS6 LQ4 LM7 L33 LC9 BTR Cathedral Rockers

BTR Brian Tooley LS1 Rocker Arms with Upgraded Trunnion Kit Installed Fits 1997-2013 cathedral port LS heads - 4.8L 5.3L 5.7L 6.0L Will not fit 2007-later 6.0L or 6.2L engines Includes: 16 assembled rocker arms and choice of bolt kit No. More. Broken. Rockers! - All new 1.7 ratio drop-in design rocker arms - 46% Stronger than stock Chevrolet rockers in FEA analysis. - Extended tip design allows for higher valve lift and improved valve tip durability. - Superior Moment of Inertia compared to roller tip rockers for maximum RPM capability. The TK002 (V2) trunnion builds on the success and knowledge gained with years of producing the popular TK001 kits. The TK001 trunnions have stood up to an enormous amount of abuse, but the TK002 takes durability a step further with the upgrade to a pressed-on inner bearing race comprised of 52100 heat treated bearing steel, over the more commonly used 8620 carburized steel found in the TK001 kits and many OEM applications. Additionally, these feature a self-oiling axle with priority feeding to the trunnion itself.