I recently bought a 91' Glastron 1700 (17") from a buddy of mine. Boat is in great condition but in need of a new engine since the current one has a cracked block. The current engine in place is a MerCruiser 3.0 liter Alpha One. I'm having a hard time finding answers to my questions, 1 where can I find a new or used to replace the broken one? Or can I drop a slightly bigger engine in its place?