I am transplanting a 383 into an S-10. I got ahold of a 24" X 19" Jegs aluminum Radiator with a Pro Form 16" 2100 CFM fan for a good price. This truck will see a lot of hot weather, heavy use, and some towing. Do you think this will be enough radiator and fan to keep it cool?  

I'm not sure if this will help, but I have Perma-Cool Cool-Pack with dual 14" fans on a 17x34 radiator core.  This is on my '88 4x4 with a 383 that has been through stop-and-go traffic.  In fact, it used to be my daily driver before I got another PU.  Anyways, I've never had a hint of overheating.

Jeff

Jegs sells a lot of different P/N aluminum radiators so with out a part number or better description of perimiter size, core size, tube quantity and size, and fin count, whether it needs a transmission cooler, etc it's hard to say.

Originally my LT-1 350 powered S-15 ran a Be Cool S-10 conversion radiator of a single tube design. No air conditioning but automatic transmission. Here in coastal Washington state, it was incapable of cooling the engine period! Temps ran around 240 with a 180 thermostat at any speed above 50-55 on any day. Couldn't cool in stop and go traffic at all. Ran dual electric fans, added external transmission and engine oil coolers which helped by lowering temps to 210-220. Water Wetter and that stuff proved useless, the slight reductions in temp of 2 to 5 degrees were insufficient against the high operating temps.

I converted to a Jegs double pass aluminum radiator (2 rows of 1 inch tubes) Nominal operating temp in cool weather was 185 to 190 at freeway speeds with a 180 degree thermostat and 1/4 inch bypass hole. In summer weather temps in the upper 80's to mid 90s that moved to 190-200 which creeps up with speed, around 80-90 sustained and climbing mountains it would go to 210-220. But worse is idleing in traffic where the temp keeps climbing to 220-260 and higher if you don't shut down.

Latest is a old fashion copper/brass unit from a 454 Monte Carlo with 4 rows of tubes. Holds 185-200 depending on outside temp, but is not speed/RPM sensitive. Still doesn't like stop and go traffic. Just can't seem to get enough air through the engine room, this may be a function of too big an engine for the underhood space just won't let enough air around and through the engine room.

Bogie