Help cooling 408 stroker

MC2374 Radiator Dimensions:
Total:
21.13" tall x 25.75" wide (including brackets)
Core: 15.88" tall x 22.5" wide x 2.75" thick
Inlet: 1.5" driver side
Outlet: 1.75" passenger side
Tanks: 3.13" thick
Tubes: 0.63" thick


How do I get the water pump to crank pulley ratio?
How many rows of .63 tubes?
With the cap off look inside the neck and count the rows.
I take the diameter or circumference of water pump and crank pullies. Divide the largest number into the smaller, that will roughly give you the percentage of overdrive which is really what you are looking for.