How difficult would it be to drop a 320i engine into my 1970 2002? Both 2 liter engines. Do they have the same external dimensions? Can I remove the furl injection set up on my old engine, and swap the carb over to the 320i engine? What about the fuel pump?

If anyone's ever done this swap before, I'd love to hear how it worked out.

For those who are wondering why: the engine is seized in my '02, and I can get a nice used 320i engine, with a 2 year warranty, for $750. I can't rebuild my '02 engine for that price!