Re: cat 3208
The turbo'd 3208 is a much better engine than the non-tubro'd 3208. They give you three piston rings, as opposed to two on the 3208NA. Not a whole lot more horsepower on a school bus engine (the NA's 210 hp to the Turbo'd 225 hp, I think). You could probably boost it up another hundred hp, boat engines do, but you'd wear it out a heck of a lot sooner. I really like Cummins stuff, and the Internationals seem to be built with a lot more metal.
All in all, the 3208 is a good boat anchor (and of course it is a parent bore as opposed to a sleeved engine). Figure a quarter of a million miles, max, on an engine before a rebuild (if really, really lucky).
Gotta to love a big V8, though.