What was the original radiator?

[ew1usnr]

Did 1963 Falcons with a V-8s originally come with two row radiators?

I read that 1964 Mustangs with V-8s originally came with two row radiators and that three row radiators were recommended as a replacement for additional cooling.

I ask because I currently have a three-row with a one-inch fan spacer that gives me a one-inch clearance from the radiator.

But .... it appears that the car originally used a two-inch fan spacer and that means that the original radiator
had to have been one inch thinner that what I currently have.