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Marine Block

Posted: Wed May 29, 2002 5:30 pm
by scottm
Is there any difference between a marine block and
those used in automotive applications? And is there
any difference between reverse and normal rotation
marine blocks? Will the crank, heads, and/or intake
from automotive engines work on a marine block?

Scott Moseman
TheHemi.com Admin

Marine engine rotation

Posted: Fri Nov 15, 2002 3:01 pm
by BoatHemi
The rotation of a marine block is a function of the gear box (v-drive, straignt drive, reduction, etc. Not the motor rotation. The gear box provides the counter rotation.

Marine block- Industrial block- Reverse rotation

Posted: Wed Jan 22, 2003 11:20 pm
by IndustrialHemiGuy
Scott, The Marine/Industrial blocks were made from the same molds as the car blocks, but there was a difference. The difference was the material , the marine/Ind had a 5% nickel content mixed into the cast , which made these blocks extremely wear resistant (providing the air cleaner is present,dirt will wear out anything). I believe these blocks were also physically tougher than the automotive blocks. The reverse rotation motors were different only in the camshaft and distributor drive . A Dodge dealer in Fairbury Nebr used to stand the reverse rotation motors up on the tail end (bellhousing side) and couple a wellshaft to the engine crankshaft thus eliminating the need for a driveshaft or gearhead, they also had to run a dry sump oil pan with a remote oil supply (really unique). The truck motors used an intake manifold with a thermostat in the manifold . I have never seen a ind 56 or 56a with this setup. The 56 ind & 56a ind both used car type manifolds. Dean

Posted: Wed Feb 26, 2003 2:25 pm
by Gregg Dearth
If anyone needs a 331 marine block, I have one available, make offer. No heads, or drive gears. But has cam, crank, rods, pistons inside and dual 1 barrel manifold. Removed from boat that burned. Located near Buffalo NY.

Hemi Powered Boat

Posted: Sun Mar 06, 2005 8:18 pm
by Les Longanetti
In the last year or two there was an artical about Dustin Whipples twin Hemi powered eliminator boat. do any of you happen to know what issue of Hot Boat or Power Boat it was in? I would really like to read about that boat but I have no idea as how to get the magizine with out knowing which one or what month or year. appreicate any help..
Thanks
Les
eliminator219@yahoo.com