m42 to m50 swap?

[dburgoon6]

Im thinking about doing a swap into my 318is and was wondering what needs to be changed?
Are the transmissions the same? I know the ecu will have to be changed, but what about the fuel pump, how far off is the fuel pressure between the two?
What other tricky stuff has to be done?

Thanks

[shunn]

stock for stock i believe it's pretty straight forward. need engine, mounts and the ecu. i'd recommend the transmission.. but your stock one should hold up just fine.. use the search to find more threads, this swap has been done plenty of times