dean51267

I have a line on a pair of 572's from GM at a GREAT price. Obviously the carb and distributor need to be changed, but what else?

I have read hits and misses of things here, but is there a comprehensive list somewhere?

I am not committed, so just investagating....

Is this somethign WORTH doing? Thanks...

superwrench0166

There Was a Post long ago on Hotboat. Reclearance rotating assy. Diff Camshaft And some Head work diff valves and such.
There have been a few put in boats. One in an Eliminator was documented in Hotboat Mag.

AIR TIME

I think one of the offshoreonly boats went that root last year and had to change alot of stuff?

Airpacker

Ask BG1. He went that way a few years ago and broke one motor good. They are built for the street. TOO TIGHT for marine use. Need to clearance the mains, rods, pistons even maybe. Rebalance rotating assembly. Replace exhaust valves at a minimum. Might as well just buy the parts and build it from scratch.

dean51267

that is what I thought it would take, but I am still learning, thanks...

vtec

Could you run them at typical automotive use temps if you run closed cooling?

Thus, the bearing clearance dimensions would not need to be changed.

vtec

Oh yeah, you want inconel exhaust values.

vtec

http://www.offshoreonly.com/forums/s...er#post1849577

oil bypass valves are different too

vtec

May need larger oil pan too.

BY U BOY

Marine Power Is Working On Or Has Already Completed A Gm 572 Conversion You May Want To Talk To Someone Over There 985-386-2081
IN FACT IT WAS SHOWN AT THE MIAMI BOAT SHOW AND IS ON THE COVER OF HOT BOATS MAY ISSUE
620HP