Mopar into a chevy eh well I suppose,,, there is an old saying it goes "if the shoe fits wear it"
FWIW when I did my first V8 swap from the original straight 6 250 in my C10 I used the single core rad that was in the truck up until I went to the current 383 (stroker not mopar). I had a fairly hot 350 in there for a while and never had an overheating issue without a shroud and no aux fan either. The orignal single core rads have a huge surface area at least this was the case n the 72's not sure of the 67's capacity or what type rad you have now. Dont forget the trans cooler.
The flexalite black magic fan is what I run now with a some back yard brackets, using a flexalite variable speed soft start controller which is great and a tripple core rad from a 69, no fan on the motor, a manual override can be connected to these controllers to bring the fan on through a toggle switch, cool as a cucumber
Last edited by Custom10; 04-06-2013 at 08:36 AM.