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E46 Engine Swaps
Replacing your motor? From direct replacements to more exoctic engines, if it's going under the hood of an E46 3 Series this is the forum to discuss it.

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Old 01-31-2020, 04:58 PM   #1
vonfries
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Join Date: Jan 2020
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M57d30 with xdrive into a compact

Hi.

I've decided to build myself a daily driver/ sleeper in the form of a e46 compact with the drivetrain from a 330xd:

Ideally I would like to find the 204bhp m57d30tu but as I am looking around for donorcars I have come across a 184bhp 330xd for good money and so after doing some research I wonder... Internally is the only thing different about the m57d30 and d30tu the piston arms? the bore is identical? so If I took the pistons and piston arms from a tu I would get the same stroke or is there a difference in valves etc?

I know turbo is different and intake etc but as far as internals are concerned?
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