US Radiator makes some very nice stuff. All U.S. made also. I have their stock type 3 row in my Mach that has served me well over the years. The only time it crept over 200 was on Drag Week, sitting in a traffic jam on a 90* day with high humidity. That is with no electric fan and a stock type shroud, 497 hp, all iron and a cramped Mustang engine bay. It hit 210* and I was about to pull off and let it cool down when traffic finally started to move.
US makes a very interesting 3 & 4 row triple pass radiator, where the flow is divided in the upper and lower tanks and makes 3 passes through the core. They claim it makes a 20% cooling improvement over the single pass. Together with the increased tube/fin count, it should make a big difference. I was thinking about using that for my new engine, since it see's plenty of street time on the long drives. I also will be switching to dual Spal fans on a custom shroud, along with a CVR pump and Jay's adapters. Hoping that will be enough. Airflow is very important, and all the info suggests that Spal fans move more air than any other aftermarket fans, although some guys seem to have good luck with using newer OEM fans, such as Taurus units.
Warning about those triple pass radiators though, they are pricey.
