Quote:
Originally Posted by swamp2
Not sure if that was directed more at Uli or me. Either way I will bite.
The heads indeed can be a huge part of turning an ordinary engine into a much more special and high performance one. The M3/4 will undoubtedly have a heavily modified or entirely different head. I am not so sure it will require different internals such pistons, rods and crank. The cost/volume side of the equation leads me to believe those will be common.
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If they apply more boost they might want to go forged pistons, not sure what N55 already has. I wouldn't be surprised if they stretch it to the traditional 3.2litre...no??