John, I think I would start with a call to Sea Ray's customer service folks. Surely the topic of repower on a hull like yours has come up before. It may save some research time.starshine said:I posted this in the Boating Forum, but not much interest. If y'all want to move it or delete it, fine.
I am looking to repower Starsine, a 39" Sea Ray Express Cruiser (1989), it has vintage 1989 twin 7.1 liter (330 H.P.) gasoline Mercruiser engines. I wanted diesel, but too expensive, so now I'm looking at Crusader 8.1 HO engines. The Mercruisers currently get 4 Gal. to the mile ( I know thats crazy and I'm looking a tweaking my props), but I still think I need much more horsepower. If someone of y'all have the expertise and time to discuss this w/me I would appreciate it.
E Dock Bob