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      12-29-2012, 09:50 PM   #25
Drives: 03 Turbo Cobra, 2011 335xi
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Originally Posted by F335i View Post
The crankshaft is forged, it says it on the n54 mechanical engine section PDF, while the N55 engine PDF says is cast iron... but it doesn't say that piston are forged on the N54 like a lot of people think.

Correct, the n54 had a forged crank only, which I wouldnt consider as being "forged internals". However the N54 never had forged pistons or rods, ever, which is the myth that is flying around the forums that the N54 had.
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