Posting this question for a friend of mine who recently popped his '99 Evinrude 225

He has the opportunity to pick up a Merc 2.4 drop on powerhead and we are wondering if it is at compatible with a 'rude midsection or foot? I remember reading in one of the ModVP threads about the possibility of mismatching bits and pieces. Can it work or are we way off base?

Thanks!