68 Dodge Dart with 440 Cooling recommendation

Just an FYI. I run this for my 383. Temp gets up to 195, fan comes on and it cools down to 185 and turns off. This isn't instant and takes a few minutes but it keeps the heat in check, even in traffic and higher than 30 degree Celsius temps here. It typically runs about 185 on the highway.

Northern Radiator - Northern Radiator | Muscle Car Radiators (Downflow) - 22 x 20 7/8 x 3 1/8
I run this fan shroud but bought a different fan because this one didn't fit. Northern Radiator | Single 16" Electric Fan & Shroud - 16 5/16 x 21 3/4 x 4 3/8
This is the fan I run. Spal fans are really the best and underrated. This one pulls 1600 CFM according to them and is only 2.5 inches thick.
VA18-AP51/C-41A * 16"S/12V | SPAL Automotive USA Webstore
I also run a Mezier electric water Pump. It gives 3/4" (If I remember right) more clearance then the belt driven pump...
Electric Pump Mopar, insert style

I also have the hood to cowl seal and have everything sealed up quite well so that all the air flows through the radiator when heading down the road or when the fan comes on.

I did try the Jag clutch fan setup with a 17" fan but the clutch would just touch the radiator, this setup worked OK. I tried Spal's thinner fan, it's only 2" thick with my stock water pump, but it just wasn't enough. I tried a flex fan too but that was the WORST!

Works for me YMMV.

Garth