Quote:
Originally Posted by XutvJet
That is a forged crank.
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i did some googling and realised it is forged due to the wide parting line and smooth edges. it also made a harmonic singing noise when i tapped it vs a thud a cast crank would make.
this then means that a pwg m135i which looks identical also has a forged crank as i have seen one as well.
what i dont understand is if the crank is forged and the rods are as well what makes the n54 internals stronger?