Re: WHat can happen if you overpower?
The main structure I-beams will not handle that weight of a V8.You would have to reinforce the stringers.
The 4cyl mounts on the transom more or less. The V8's mount all on the stringers. Transom would be fine but the aluminum stringers would not.
You did not say what size boat you have.
If you do it add a lot of strength to the stringer system and call me when your done......I want to go for that RIDE