Let's throw this out there for debate and see where the comments go... I feel more at home around an LS motor because of my Camaro's and Trans Am's. I'm out of my element with my BBC that is in my boat.
Boat - 16' Mantra Tunnel Hull (305lbs bare hull)
Pump - Dominator with B impeller
Current engine - .060 over 427 with square port iron heads. 12.5 to 1. tunnel with 660's. Headers, etc. (The guy helping me estimates 550hp?)
LS1 would be - Ported heads, Cam, Headers, Tuned, EFI, (Approx 500hp)
My goals for the boat-
Semi decent lake boat (mostly cove racing and hanging out)
One day POSSIBLY compete in River Racer/SE/ME (Whatever I fit in)
What do you think would make a better combination and why?