I found an 850 engine and tranny (automatic) for sale for $1300 at a scrap yard. It has a 6 month warranty with it so I'm tempted to buy.
I'm just curious to see if it will fit in my '94 325Ci with a little restructuring. My neighbor who is a pretty experienced mechanic will help me do it. But first I want to know if it's been done before and if so, how?
Yes, but the m70 is a horrible engine. It's electronics are a nightmare ... electronic throttles, 2 computers, a tranny computer ... it's complicated as shit. That and it's not really a huge improvement over the m60/m62. If you want to swap a large engine, find a m62b44 out of a 540 and swap that. Almost the same power and a lot easier to deal with.
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