Reply to "airflow"

I may have misunderstood you. I'm also not a radiator engineer, but based on experience at this time, seemingly the best radiator for Panteras is the aluminum Fluidyne sold by all the Pantera vendors as a bolt-in. A shrouded dual sucker fan setup by Flexilite that pulls 2500 cfm of air, mounted on the back is available. The transfer tubes in this radiator are 1" wide for more water flow & heat transfer; dunno how many rows. Laying the rad fwd makes working on the back easier but does nothing for cooling. This rad is used by many Pantera racers and at least one 510-inch big-block that was driven from LA to 'Vegas, track-raced and driven home, all with no overheating. At low speeds, what the fans must do is create a 25 mph breeze thru the whole core; less airflow= overheating in slow traffic. If you have this setup and still overheat, there is some other problem besides the radiator, such as too much ignition advance, causing excess heat.