Engine swap

[snagiloohklat]

I have a 1987 325is and I am thinking about buying a 1987 325 sedan. I'd like to know if it's possible to swap the engine from my 325is to put into the 325 sedan? If so, please let me know.

[marti5]

Cant see why not, whats the difference??? or do you mean the sedan is not injection?

[AlpineSixAndSeven]

umm.... the 325 (no I ) has the Eta block right? which then that would be a no... btw what it the redline on the 325 same as you is?

[snagiloohklat]

They're both e30 models same year and same m20 engine. The difference is the displacement. the 325 is a 2.7 liter and the 325is is a 2.5 liter. I figure if the 325is has a smaller engine, the conversions shouldn't be a problem. Anyone disagree?

[marti5]

What about all the wiring for the injection system etc.

[snagiloohklat]

I'm not sure.

[AlpineSixAndSeven]

nope I wouldnt bother.... to my knowlage you need all the wiring and ecu swapped over.... not worth it for the small bit of HP....

[gotKRAUT]

the 2.7 makes less power than the 2.5...but makes more TQ...if you want a higher reving faster road race car use the iS motor...if you want to be faster stop light to stop light...use the Eta get a chip and a 3.46 LSD for it...the torque will scare you...lol

[snagiloohklat]

So it is actually possible to swap engines? That's what is most important to me. The reason why I say that is because I totaled my 325is, but the engine is still good. I just bought the 86 325 sedan today. I didn't want to put money to waist so I bought it hoping that when time comes to replace the engine in the sedan i can just pull the engine out of the 325is. I had the engine rebuilt last year and it has under 3500 miles so it would be a complete waist to junk my car or sell it for less.

[gotKRAUT]

yep piece of cake...just do a search for it over on E30tech or R3vlimited, theres a few threads on it there