Looking for 1988 M3 engine

I have a 1987 325e with 160k miles
Looking for rebuilt m3 4 or 6?
Anyone know were to start looking?
Thanks have a great day.
Newman

i know i guy with a S14 evo II M3 engine for 9000 dollars. its posted at turnermotorsports.com on the for sale list i believe...if not private message me if your interested.
My best friends dad also builds/rebuilds engines. Heis getting ready to put a 3.2 liter e36 M3 engine in a e30 M3.
look on turnermotorsports.com they ussually have a few engines on there.

well, never mind...i checked turnermotorsports.com and they didnt have any e30 M3 engines. sorry about that.

Thanks for your input anyway.
Newman

there is a 2.3 liter S14 e30 M3 engine for sale at dtmpower.net in the e30 forums for $4000 dollars and also a 2.7 liter 6 cyl for 2800.