Fresh Water Cooling plumbing with Stainless Marine Exhaust
 

Need some help; does anyone have a diagram or pic of how their FWC is plumbed with stainless marine exhaust manifolds.
I have a Merc freshwater cooling system I want to install on a 454 and I'm not sure of how to plumb it.
Currently drawing water in at drive. Pic of engine as it sits now. Motor hasn't touched any salt water so until I get this installed I ain't going out...arghh. Any help would be greatly appreciated. Disregard flame arrest or/air cleaner��
[ATTACH=CONFIG]555030[/ATTACH]

Full or half system?

Would prefer to make it a full system.

I hear ya, but you need to know what you have. If it's a half system you can't make it a full system.

Thanks for the FWC education. Not sure what I have, here is a very crude pic of my heat exchanger does this help Id? Only pics I have right now but can get more tomorrow if needed.
[ATTACH=CONFIG]555035[/ATTACH]
[ATTACH=CONFIG]555036[/ATTACH]
[ATTACH=CONFIG]555037[/ATTACH]

Can't tell haha

Ok sorry pic stinks I know since its shrink wrapped. I'll unwrap tomorrow and shoot some more pics. Thanks

you would need to ck with stainless marine to see if you can run theirs as a full system. The difference is where the manifolds are cooled with antifreeze and tips are just where heat exchanged water is dumped, some manifolds are not setup to run this way. plumbing is simple, drive-coolers-heat exchanger-exhaust for raw water side, fresh side different with manifolds, but heat exchanger to cir pump, therm housing back to exchanger or thru manifolds

This is a diagram of what the heat exchanger looks like
[ATTACH=CONFIG]555046[/ATTACH]

Ok, they are dry-joint manifold-risers. They CAN be plumbed with antifreeze in manifolds or raw water in manifolds. The question is whether the heat exchanger has the cooling capacity to cool manifolds too, or can only handle the engine alone. So you need to find out which exchanger you bought...