Offset Timing Keys sp-add progressive angle billet helix along

progressive angle billet helix along with the billet torsional conversion kit

Huge acceleration and track speed gains

valve seals

This head has twice the cooling capacity to keep your motor running cooler to maintain horsepower by staying below the 120-degree timing curve

Step3: 40ft lbs

Offset Timing Keys sp-add progressive angle billet helix alongBMP Offset Timing Keys are offset to advance timing by slightly rotating the flywheel in various degrees. Advance your timing for more horsepower. On average it's 1 2 HP per degree. Premium gas required in most cases. 4 5 degree typically require race fuel. Easy bolt on performance! BMP Advanced Timing Keys Read full description below before purchasing Small 1. 3 Degree PN: BMP TK1 Small 4 Degree PN: BMP TK3 Large 1. 25 Degree PN: BMP TK4 Large 2. 5