newbie question - 85 318i engine replacement - BMW Forum -

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newbie question - 85 318i engine replacement

I'm helping a friend find a replacement engine for his 85 318i. I see a couple of 84s around. Is this a direct replacement? Meaning that the engine harness, alternator mounts, a/c mounts, water pump, etc are the same. And the transmission attaches without problem?

Will any 84 to 91 be ok to use?

He broke a valve which destroyed the head and poked a hole in the piston. I didn't inspect the cylinder walls. I'm thinking it will be easier to just replace the block and head as a unit.

Any wisdom will be greatly appreciated as I'm not very BMW experienced.
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