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I will be needing a new Radiator from US Radiator my questing for the 235 is a 3 or 4 core sufficient

Shade Baby

3 row will flow more air than a four row. A four row will hold more coolant because it's thicker, but less air flow because it's thicker. Aluminum radiators use two rows of a much larger tube, thus more coolant and better air flow. It really comes down to cost and the coolant load you are going to put in it. A stock 235 will work with a 2 or 3 row, or you can step up to a four row as long as you have a decent fan. Just remember, the aftermarket radiator will be a pressure unit, where the stock was open to atmosphere. The heater core will determine how much pressure you can run, most were designed for zero pressure.

If you are going to add A/C, I would lean towards more air flow, most any new radiator will cool the motor, but you need air flow to cool the A/C condenser, and a thick radiator may not work for you with the slow idle and factory fans of a 235.

Thanks, i did not even think about the Harrison Heater core. 3 row on the rad will be just fine

While a better flowing radiator will help, a better coolant make a huge difference. When I was deployed in the Middle East we would use a coolant that was formulated for desert environments. It literally dropped the operating temp of Power Station Generators by 20 degrees. That massive difference at a 128 degree air temps. The biggest drawback to using this type of coolant is you cannot add water to it.

While it may not be something that everyone would use it works, it's at least worth reading about

http://www.evanscooling.com/coolants/

If you never see freezing temps, the best coolant is --------- WATER. Yep, just plain ol' water. But a Corrosion inhibitor package should be added.

Evans coolant is 100% Propylene Glycol, which doesn't have as good a heat capacity as the standard 50/50 ethylene glycol coolant, and plain water beat both of them in it's heat capacity properties.
One downside of water is that it evaporates or boils away, which is why pressurized cooling systems were developed. Evans doesn't have that issue, but in the same cooling system, will not beat water in heat transfer properties. It won't boil, but the engine will run hotter if the radiator isn't up to the task.