I don't have the computer program in front of me at the moment but mid 80's sounds about right.

And Gary that would be cheating to use BB's

1st I was jealous, now I'm cheating Don't worry Rob, you will have the QUICKEST Y2K EVER MADE. .................................................. .................................................. .................................................. .................................................. .....................FOR A YEAR. ha ha lol !!!!!!

I hear you Rick, but I don't see it happening with a mild mannered naturally aspirated SB.
450HP out of a 383cube or you need a high $$ custom block.
I would guess twin 450s would have the boat running along side of Faster.

Hey Rob Where Abouts Are You In HB .I Have A Very Close Friend Who Lives In Huntington Beach He Owns Beach Medical Uniforms Across From The Hospital. He Used To Sell Superboats Out There In The Mid 80s Early 90s .He Got Nigel Hook Started In Racing With a 21 Super. His Name Is Harley Stop In And See Him .Cool Dude

Just up the street from the hospital... I'll pay him a visit next time I drive by.

If the new vettes are putting out 500+ with all the emission junk and detuning for 87 octane, then I can see 500hp as doable.... hell maybe 2 Z06 LS2's will be the ticket. I think they are aluminum blocks too.

YA and then they will be super reliable.

Anyone seen the new Lingenfelter Supercharged LS2 motor... isn't it something rediculus like 850hp?

The stock 400HP/6.0L Vette engine is an all aluminum version of the 6.0L Truck & Marine engine.
So I would think it would not be too big a deal to marinize either the 6.0 or 7.0 Vette engine. I think they may even be available from GM Performance parts???

Looking into it...

Hmmmmm