Fishstretcher has a bravo 3 and 350 on his 25.

A 383 stroker motor might be even better. Not a high rpm motor but neither is the outdrive, and it'd be significantly lighter than a big block!

The new Gen V Marine LS series L86 motor is aluminum, weighs less than a 383 and has more power. It has 6.2L displacement - Volvo is offering it at 420 or 430 HP and Kodiak is also offering it. I think even with the FWC it is something like 150# less than a 5.7 or 383. Problem is that it probably isn't as cheap as a 383.:o

that would be nice but the $ would be the issue, I could build My own 383 stroker for a lot less . I have a mercruiser 5.7 vortec roller motor with a blown head gask. wouldn't take much to build it

FWC with Good Aluminum heads and aluminum exhaust & intake manifolds would take a lot of weight out of a 383. Losing 150 lbs back there and improving how the engine breathes could work out really well.