Murf,
It has the original radiator, C4ZE-8005 A1, with 10 fins per inch. It certainly doesn?t appear to have been born with A/C. No real way to know if it was installed by the dealer prior to delivery, or by them or someone else days, months, or years later. That said, I do feel confident that the Fordaire kit they used was boxed in 1964 and it appears to have the unique 64.5 compressor mounting bracket. I guess I need to figure out what kind of tag the kit would have had.
Thanks,
Bobby