mainbearings

[phattieacid]

got a problem here screwed the engine up in my 91 325i so i could not use the block without boring it out so i had a spare engine out of an 86 325 i had it honed you know what your supposed to do anyways well i bought bearings for a late 86 insted of the early ones and im running into a problem but the bearings are supposed to be able to be retro fitted to the early model anybody know what im talkin about any suggestions

 

[echothreezero]

AFAIK you should be fine. The only differences in the motors between the years is the position of the pickups for the ecu as they went from jetronic through motronic I and motornic II.

Ask at your parts supplier - they should know for sure.