BTR LS3 SHAFT ROCKER KIT Before assembly, please check fitment with your aftermarket cylinder head We now offer the shaft rocker kit as a complete assembly with BTR rocker arms for only $160 more! Introducing the new BTR Shaft Rocker Kit – The Next Step in the Evolution of LS Rocker Arm Trunnion Kits 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.

BTRSRKRFMKITASMBTR M311 LS3 Shaft Rocker Kit With BTR Rocker Arms Features: