Originally Posted by mikeh
I have been given a fletcher Faro which once had a mercruiser 120 hp inboard. I also have a small block 289 V8 with VP 270 outdrive which would fit the hull, probably at least double the power but lots more weight. It seems like a fun idea but is this combination going to be a mistake?
Probably a good starting point would be to work out the difference in weight of engine drive combination new and old, then add another 30-40kg for strengthening. Dunk the boat in the water with 4 adults and the difference in weight in sand bags and see where the boat sits with the extra weight.
I suspect it will end up very arse end heavy and not very well longitudinally balanced is it quite a short boat. It will probably nod like a donkey, you could but ballast tank in the front, but with all the extra weight you will only end up with another 10-15 mph, for a lot of time and money.
Next I would be checking to see if the transom is waterlogged or rotten, as with the extra power you may need to strengthen or replace it. I suspect you would need to do a lot of strengthening to the boat with that much extra power and weight.
Probably really not a good combination, would be better in a Phantom 23/25