Heavy duty cooling system

[On Empty]

I have heard that the R/T’s and GTX’s Have heavy duty cooling systems. Can anyone tell me if the radiators are three core or four core radiators? Do the cooling fans have seven blades?

 

[Black_Sheep]

It seems kind of ridiculous, but my GTX came from the factory with a 22” radiator, direct drive fan and no shroud. I believe that a buyer would have to order HD cooling specifically, or select another package which included it, like a “Track Pack” or AC…

 

[68BabyBlue]

I've had five GTXs with the heavy duty cooling system, which included a 26 inch radiator. Two factory '69 A/C cars, one had a direct drive fan from the factory, the other had a thermal drive, which was the usual set up. Seven blades on each, with shroud. One '69 with Performance Axle Package, one '69 Track Pak 4 speed, and one '68 Hemi automatic- fan on each of those was a seven blade viscous drive. Three row cores from the factory. Current A/C car had the original radiator re-cored with a two row, with bigger tubes than original. No cooling issues, when running A/C at 90 degrees.

My unrestored '68 GTX with automatic and no A/C came with a 22 inch radiator, a shroud, and a seven blade direct drive fan. Never had a cooling issue after I had the original radiator re-cored.

 

[1KoolBee]

My ‘68 383/auto Bee has the ultra rare ( for ‘68 bees) factory air. High capacity cooling fan (sales code 491) is called out in the fender tag. It came with a 2-row 26” radiator and a 3” pitch seven blade clutch fan. It was barely adequate, especially in town on an 100+ degree day until I recored to a 3 row, then I could run the air anytime with no problem. Getting ready to recore again to a ridiculously expensive 4 row since the 3 row is about done.

 

[ckessel]

I have a 26" 3 row unit on order through a local, somewhat, radiator shop. Brass/Copper unit. It's coming out of Texas. $425 plus shipping and tax. It's for my 67 wagon which the PO put in an eBay universal special. He butchered the fan and shroud to make it "work". I picked up a new correct shroud, fan, clutch and hoses.