Picked Up a Spare M20. Help Me Identify It!

[whodwho]

Also has a a plastic one piece injector wiring harness and an impulse sensor on the ignition wires so I would say a later b25i so should work well in your 91

[reelizmpro]

Hard to tell these days without looking at injectors/fpr/camshaft/valvesprings. It appears to be an I engine but where is the oil filter housing? It has the early style L idle valve and late style water pump it looks like. Hard to be sure these days without looking inside.

[Cronopoulos]

M20 motor for sure, good find.

[Varinn]

The 2.5/2.7 on the head makes me think superETA, the intake manifold is not an eta manifold but I don't know the superETA by looks. It could be a 325i intake, but I don't recognize the head casting specs so I'm voting super. Somebody more knowledgeable then I will chime in however, you may have scored the starting of a budget stroker!

[ClayW]

I picked up a spare, supposed 50K mile M20. Amazingly, a friend and I were able to unload it sans engine crane.





Can anyone tell from these pictures what the details on this motor are? ETA, non-ETA, etc?









My goal is to replace the gaskets (other than the head gasket), timing belt, water pump and a few other things, then swap this into my 91 sedan, that has over 200K on it. I want to make sure that I can swap it in as a stock replacement. I can take more pictures of different parts of the head and block if needed.

Thanks in advance.