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Will a m30 head fit a m20?

Posted: Oct 20, 2014 12:36 PM
by joshhankins
I have a 88 e28 528e. Just wondering if an m30 head will fit a m20. Thanks

Re: Will a m30 head fit a m20?

Posted: Oct 20, 2014 12:42 PM
by Mike W.
Nope, not even close. An absolute no.

Re: Will a m30 head fit a m20?

Posted: Oct 20, 2014 1:13 PM
by tig
Actually, it depends on your definition of fit.

It also depends on whether you are willing to melt it down and re-cast and machine it it first (you'll have to do this with the head and not the block; there won't be enough metal in the M20 block to make an M30 block).