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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 04-24-2015, 02:06 AM   #1
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Join Date: Apr 2015
Posts: 15
m52b23 and m54b30 swapp

What parts are swappable on the m52b23 and m54b30 engines? I know the throttle body is a no go, but I'm thinking everything else should swap right over right? Or do I need to go with a m52b28 if I want to swap the intake manifold, injectors, intake, yata yata.
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Old 04-24-2015, 10:20 AM   #2
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Join Date: Aug 2014
Posts: 102
My Ride: 323ci 1999
m52b23 and m54b30 swapp

well I did swap from M52B23Manifold (323ci) to M54B25 intake manifold and I needed new disa valve , old one was to small in diameter, i needed adapter plate for throttle body to intake connection and I think that is it , i cannot remember if I forgot anything. every thing else will fit injectors CCV ...

Last edited by grimma; 04-24-2015 at 10:21 AM.
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