the best thing this 64 has going for it is the lack of rust... they made up for it with dents though
that rad explanation makes sense then, because I have a 66 with the 230/250 that has a big rad, which had confused me...
when I do the change out I might put her motor back in it , and the 63 clip back on it, and keep it together, other than the big dent in the roof this cab is just mint!