Originally Posted by kennyo (Post 2576840)

I just pulled a complete "731" cam, lifters,springs and retainers out my Pro charged Gen VI. I f yours is a roller motor I'll make you a heck of a deal on them. It sounded and ran awesome in my boat.

Originally Posted by barry d. (Post 2576597)

I'm just looking for a shelf cam that's mainly going to give it good sound. The engine is stock with an intercooled procharger. I like a nice lopey idle, but basically want a plug and play application so nothing too radical. I'd just like to be able to remove the old cam and install the new one without needing to change springs or anything. I think comp may have a line of marine cams but figured I'd ask to see what you guys have run with success....
thanks

Originally Posted by Chris Sunkin (Post 2578145)

Many exhaust systems won't support the cams that are being discused here. Big exhaust overlap leads to reversion, leads to exhaust valve heads wedged into the tops of pistons. If you have stock Merc manifolds or many of the aftermarket one's with short risers, reversion is going to be a big issue for you.

If you don't have good stainless valves at a minimum, cam is going to be the least of your worries. Blowers introduce alot more heat to the exhaust valve. Once it gets really warm, it'll start to tulip- and then you're screwed.