Be aware of the pilot shaft for the tranny going into the crank. I don't know for sure if BMW changes the crank depending on the final use of the engine.
Many american car companies delete the crank drilling unless needed to cut cost.
However, the bolt pattern is the same. The 5-speed will bolt up to an auto motor, and vice-versa. (also true for the 6-cylinder)
__________________ "Speed's just a question of money. How fast you 'wanna go?"