Pistons  >  Mini EN40B Race Crankshaft

Mini EN40B Race Crankshaft

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This world renowned race crankshaft has been developed over several decades of motorsport. Not to be confused with any other EN40B forged cranks on the market. The special counterbalance webs are crucial for reduced vibration and smoother running at max revs.

For the last five years Swiftune has used this design of forged crankshaft in all of its race-winning engines including historic Mini and Mini Miglia.

*1300 crank suits 1275(non Cooper S)block, 81.3mm stroke, 1.625in big end journal(Cooper S)

*Long stroke suits 1275(non Cooper S) block, 86mm stroke, 1.625in big end journals(Cooper S); with 73.5mm bore this crank produces 1460cc capacity.

*Short stroke suits 1275(non Cooper S) block, 76mm stroke, 1.625in big end journals(Cooper S); with 73.5mm bore produces 1290cc capacity.

*Cooper S suits 1275 Cooper S block, 81.3mm stroke, 1.625in big end journals(Cooper S); with +20 pistons produces 1293cc capacity.

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