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      10-03-2012, 03:10 PM   #445
NISFAN
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Drives: BMW M2
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Quote:
Originally Posted by swamp2 View Post
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.
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??
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