I have an 89' 325 conv. I just put on a new top and bought it some new wheels, it still looks rice because it has an M3 badge on the trunk lid that is comming off as soon as I buy some gum off to clean up the glue...well anyways back to the topic...
My engine has a very anoying knocking in the mid engine, I think its a wrist pin waiting to break my engine in half...a rebuild is in the near future unless...

I can get another engine, maybe one out of an e36. I have checked around but I cant find if it can be done, or can it??? Please some tech advice would be appreciated....