My F100 352 w/AC doesn't like the hot weather. I have a stock clean OEM radiator.
I don't want to go to alum radiators and electric fans so I wonder if there is a difference between an F250 radiator and my F100 radiator.
If one could be found would it fit in my F100, and would it help cooling?

TIA

 

Don't think there was any difference between the 2. My F250 had what seemed to be the same as any V8 truck. What I did initially (have since gone to aluminum) is install a later model rad. Found a 4 row from a mid 70s which is quite a bit taller than our stock original. Coupled that with matching shroud and never really had a problem (until leaks pushed me toward buying new) Only slight modifications were necessary to fit larger stock rad. Also installed 7 blade flex fan.
Are you overheating or just running hot?

 

Yes, F100 and F250 (and in some cases even F350) shared part numbers for radiators. They did offer as an option the Extra Cooling Radiators. These were installed in all 3 of my trucks. Here's the invoice from one of my trucks and you can see Extra Cool Radiator listed in the left column.



Brass actually cools better than aluminum. Manufacturers have switched to aluminum for new car radiators in order to save weight and costs. But, the radiator shop I use has had no problems getting the exact core needed to redo my radiators. Luckily, they found the tanks on mine to be in great shape but they can solder on the inside of the tanks to repair thinning spots so you don't see the repairs and pressure tends to help in that case.

 

Have you added a radiator shroud? Upgraded to a seven-blade fan? My truck, even with these add-ons, and a recently re-cored radiator, always made me a bit nervous in the heat, hovering close to the H on my gage, but never actually going in, no matter how hard I push it. I was told this is normal, (it did this even when I lived under the redwoods) still I was always concerned. Now I forget about it having moved to a much hotter climate.

 

You could order one of these with their cooling options. It ain't cheap. Ford Truck, 1966-67 V8 Radiator - US Radiator
I'm sure you have crossed off all the other things that can cause one to run warm. It would be a bummer to spend a ton of money on a new radiator and still have the same problem.

 

I have a shroud with 7 blade metal Ford fan with clutch. Working thermostat & pump. No overflow tank yet.
I am generally OK in the lower 90s. But Been a hot summer. Stock gage gets to the hot line and it can burp a bit out on the floor after a drive. 100 deg day I shut the ac off when I get nervous.
I get 250 deg on lower outlet from the water pump and 220 or so on the upper housing going back into the motor do about a 30 degree drop thru the radiator.

 

Those look amazing, and I would sooner buy one of those than the throwaway aluminum ones. But I have my recent re-core, plus another I got from Christmas, sitting on a shelf. I will be dead before I run out of radiators, it will be my grandsons problem

 

Color me confused but, doesn't radiator flow from top to bottom? Would mean upper hose hot, lower hose cooled.
Either way, 250° no bueno

 

Ooops. Got them reversed .

 

Clutch could be failing as well. I read that complaint a number of times when I was looking into to adding one - and decided not to.