Intercooler request

[Laowho]

Hey Guys,

Car will be here next week and we'll have all the paperwork to answer any detailed questions, but here's our situation before I start Googling w/o knowing what's pertinent. Itsa 440 marine engine but only has a 26" radiator w/o an intercooler, and pretty sure it's gonna need/want this. Dunno how the build coulda overlooked this. Direct air-to-air should suffice and am looking for any mounting issues or size limitations, etc. Know that other marine conversions get by with air-to-air and figured some of you with hi-performance engines are using these. Thanks

[Troy]

Only a 26" radiator? That's normally just fine. I don't know anyone using any sort of intercooler unless they have a turbo or supercharger.

Troy

[Laowho]

I don't know what's standard, so assuming a 26" is large, maybe they're counting on that to provide the additional cooling that a marine conversion would require? Understand the usual turbo applications for performance, but my concern is in adequately cooling the marine engine which got much of its cooling from bein in the water. I've researched whatever differences are commonly accepted b/t the marine and auto blocks--cooling came up as mentioned here, but no difference denoted in the block w/ the exception with a reference to differing water channels. Dunno if it's true but the rest seems to say there's no difference here. Saw a hi-performance Charger (1600 hp...turbo...ok...different app) that used an intercooler for its marine engine, and had me wondering. Sorry if I'm off base.

[Troy]

Standard radiator size from the factory:
http://www.rosevillemoparts.com/reference_radiatorguide.php?SID

Most V8 Chargers (big and small block) got a 22" radiator unless they had A/C which necessitated the larger 26" version. I believe an axle package on a 440 4-speed would also require the larger one. Other than that, a 22" would cool a 440.

As far as a "marine" engine in a car, I think it's still water cooled so I have no idea why it would require anything more than a car 440. The water pump may be unique but you should swap that to the car version any way. Same with the exhaust manifolds. It's possible that there were specific heads for the boat application? The only thing I know to watch out for on marine engines is to not get one that is set up to run backwards (some dual engine boats had opposing propellers).

Diagram of the boat cooling circuits:
http://www.boatdesign.net/forums/diy-marinizing/closed-cooling-system-half-29318.html

Some other general info:
http://www.allpar.com/history/marine.html
http://www.440source.com/blockinfo.htm
http://wichargerguy.proboards.com/thread/4223

Troy

[Laowho]

Thanks Troy,

As for the differences, general consensus is the same block. Except for some who said the water channels were different, but then you get into different marine versions of those. Dunno what we have but will when the paperwork comes. Seems there are open and closed water channels, and freshwater vs. offshore, and if of the offshore open variety you can never use antifreeze b/c the salt, wh/ never leaves the block, will turn it to gel. I'll check those sites. Thanks very much. Probably premature to ask about intercooler and no doubt the shop will have known wh/ type to rebuild.

edit: Yep, had already read all those before goin to see the car. Just that the owner wasn't up on the details of what the shop rebuilt. Figure for now that the blocks were the same b/t marine/auto (heard that for trucks they were often interchangeable) and that, since necessarily of the closed variety, that the water channels were also the same. Sorry. Internet stuff/generalizations get one thinking.

[redmist]

I am setting up a Treadstone intercooler in my 68 Charger. It's part# TR12C

Ryan