Radiator madness

[sparx]

My engine is a 302 built up and I am using the same water pump style as the 289 had. I bought an Edelbrock high vol water pump and will run with V belts as the 289 originally did. So the replacement radiator will have inlet and outlet both on the passenger side.

I am trying to sort out this 2 row, 3 row and 4 row aluminum radiator configuration. Some say it is the size of the rows vs. the row count. And then there is fins per inch. Seems a 2 row with 1" or 1 1/4" tubes makes sense.

I have been looking at Champion brand aluminum radiators.

I can go to an electric fan also if necessary.
I live in Tucson AZ so yes it is hot here and the car has a/c.
sparx

 

[2+2GT]

As each row is added, the overall effect is diminished. A 3-row will be much more effective than a 2-row, but the 4-row not a whole lot better than a similar 3-row. Unless you are desperate, stick with the 3-row. Use a thermal clutch fan, almost as efficient as an electric, far easier to install, and less to go wrong.

 

[chris66dad]

You can also gain cooling by also going wider on your radiator. The 66 has a 17 inch wide stock radiator and you can trim the radiator support and mount a 20 inch unit from an 67 in it. Mustang Steve has a write up on it on his site.

I used a 20 inch 2 row aluminum radiator with an electric fan. It will idle all day in 100 degree temps and not get hot.
Here are pictures and info from when we did our install:
Cooling

The 20 inch can come with outlets on either side to help with your install.