E46Fanatics - View Single Post - E46 engine M54B30 swap into 1986 e30
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Old 08-20-2013, 03:31 AM   #2
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Join Date: Nov 2010
Location: Columbus, GA
Posts: 699
My Ride: 03 330xi, 87 325is
E46 engine M54B30 swap into 1986 e30

I've seen a few of these swaps as the motors are getting cheaper (as you said).

But I always ask myself, why this swap over a m50/s50 or m60?

To my understanding the m54 motors are really hard to tune if you ever plan on doing major modding.

Maybe you can shed some light here

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