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and Pro-Tuner EFI Systems
Ford Excursion 7
overall vehicle control and offers a level ride height
Due to the relatively high boost that the GT2 runs in stock trim
throttle response and overall performance
BTR: LS1 SHAFT ROCKER KIT timing chain and Pro-Tuner EFI SystemsBTR LS1 SHAFT ROCKER KIT Before assembly, please check fitment with your aftermarket cylinder head 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
