If you were going to swap an engine into an E30 which would you choose? Would your decision be different if cost was not a factor? Which would make you smile the most behind the wheel? For any of these choices you can leave it stock, build it up for max NA power, or turbo/supercharge it. If you don't want to swap then select the one you're going to keep.
1, 24V (M50, S54, N52, etc)
2. M42/M44
3. S14 (any variant)
4. M10
5. M20
6. Big Six (M30, S38, M88, etc)
7. V8 (M60, S62, S65, etc)
8. Diesel (M21, M51, M57, etc)
9. Non-BMW engine (Chevy, Honda, etc)
1, 24V (M50, S54, N52, etc)
2. M42/M44
3. S14 (any variant)
4. M10
5. M20
6. Big Six (M30, S38, M88, etc)
7. V8 (M60, S62, S65, etc)
8. Diesel (M21, M51, M57, etc)
9. Non-BMW engine (Chevy, Honda, etc)
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