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Old 12-27-2002, 07:31 PM   #16
M50E30's Avatar
Join Date: Aug 2002
Location: Stevensville, ON, Canada
Posts: 4,901

Originally posted by The Sly
Is the Z3 Aluminum motor strong ?

Anyone hear of any problems , specially because it is all aluminum?

If I remember well , the GM Cadillac aluminum engine was really bad.

So this engine is the same as a M50 but it is aluminum instead, which is alot lighter!

If so This is very interesting for my E30.
Well it is a BMW block (not a GM one) and the only block issue that I can think of was the 4.0L V8's in the 540i had a recall (cylinder wall coating problem, not strength issue). That M50 engine will be way more reliable than the M20 too.

If I were to do that conversion I would keep in naturally aspirated (blueprinted, balanced, port & polished, and possibly bore it out...if possible). No turbo, no supercharger, no NOS!!! That engine would probably take a good beating and go forever.
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