I am nearing getting my core support installed. I know this has been beat on before.
I have a 455 installed with a TH400 71 Cutlass S non AC. Looking for what radiator set up and fan set up would be a good option
While still using stock radiator cover

 

Why not just go with stock replacement setup or the new parts equivalents thereof? you can install a 2-row aluminum radiator, 5 or 6 blade fan and a thermal fan clutch all along with a stock shroud. Simple and well proven combo for the average street cruiser

 

Copy. Yeah this is on a mild build of engine. Any advantage to the aluminum 2 row or 3 row. Where is a good spot to purchase. I saw a champion on eBay

 

Many choices, some of which are OEM replacement fit. Cold Case is a great choice, as is this from Auto City: 1968-1972 GM A-Body Aluminum Radiator (autocityclassic.com)

many prior threads on this topic, should be an easy search for more info - Summit, Ebay, probably numerous actual online radiator suppliers should all be good potential sources for pricing and availability

 

I have a Be-Cool radiator and stock 7 blade fan with thermal clutch. With the A/C on, idling in traffic, it might get to 200 degrees. It’s hard to beat factory engineering.

 

Yeah so much info out there and so many threads. I don’t really wanna modify top plate and/or mounts. Some people say nothing is a direct fit. There has to be something that will fit with out any mods.

 

Have you tried running the radiator that was originally in there?

 

I don't think this would be as hard as you believe - your swap could be as simple as a drop-in without replacing the top plate, or possibly as difficult as swapping the radiator cushion pads (from the narrow 2-core to wider 4-core type)

my Cold Case rad was a drop-in without mods. Fits fine under my original top plate - '72 350 w/air. No fan or shroud-mounting related clearance issues. I'm running a 7-blade fan (from '76 Corvette a/c 350) and a thermal clutch as well.

 

Nice 70sgeek. I found the cold case GMA42A . this one looks like the one I want to give a shot. Is this the model you got ?
thanks in advance.

 

Yes - I bought mine a few years back and performs flawlessly. I run a 180* Mr. Gasket performance t-stat and on the warmest FL days the highest my engine temp may go is between 190-200 at extended idle.

 

I am in a similar situation but will be running A/C would this be sufficient for a stock 455 build with A/C?

 

That Autocity radiator is a gorgeous radiator for the price. I bought the 4 core saddles from Thornton for the install. Some of us had issues with those Mr Gasket high flow thermostat shutting closed at highway speeds. I use the Robert Shaw thermostat, which looks the same.

 

I have one and it works excellent.