The size and efficiency of your radiator will have a lot more to do with the cooling than the type of fan you run. The only problem I can recall with 283 oiling happened back before we learned that worn camshaft bearings can leak a lot of oil before it gets to the rod and main bearings and cause low pressure at hot idle. This was long before the introduction of the Melling high-volume oil pump for small block Chevy engines. If you're not planning to do a full overhaul, at least install a high volume pump when you drop the pan for a cleanup.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!