"You can remove the P/S pump,
"You can remove the P/S pump, cooler and lines along with the the shift linkage bracket and interrupter switches.
Bottom line, it is an easy swap. As Dave mentioned, you will need your old bell housing and starter. Also you will need to swap flywheels or have the starter ring changed to accommodate the rear mounted starter instead of the front mounted like on the I/O engine.
If you have a V drive you will need to turn the elbows around, this usually involves changing the oil lines since you'll have to remount the remote oil filter (if equipped).
Post any questions you might have."