BTR LS1 Shaft Mount Rocker Arm Kit

BTR LS1 SHAFT ROCKER KIT Before purchase, please check fitment with your cylinder head, this kit is ONLY for cathedral heads. Please check fitment with all aftermarket cylinder heads. Pre-assembled for ease of installation, ICT Billet includes BTR branded ARP Style 12 Point Rocker Arm Trunnion Bolts. A true drop in Shaft Mount Rocker System. Performance-minded engine builders know there is an inherent issue with valve train deflection when using stock rocker arm mounting in Chevrolet Gen III-IV-cylinder heads. The new BTR shaft rocker system significantly reduces that deflection thereby improving performance and durability. This kit features technology typically only found in high-end shaft rocker systems. The shaft rocker system consists of a billet steel stand equipped with four shafts per cylinder head, fasteners and bearings. The shafts are made from genuine 52100 bearing steel. Each pair of rockers has five fasteners mounting them to the rocker stand compared to the traditional single bolt per rocker configuration. During the development of this system, both aluminum and steel stands were tested - steel reigned supreme. No. More. Broken. Rockers. - All new 1.7 ratio drop in design rocker arms for cathedral port engines - 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 max RPM.