Yeah, but those Nankang tires are probably too wide to fit on a '55/56 Ford. If he wanted to go with modern radials, I recommend P205/75R15's on the front and P215/75R15's on the rear. They will fit and not rub up against front ball joints or rear tire-well. But they are not available in wide-whites.
Thats why I went with the American Classic bias look radials. They are excellent tires and available in WW, but very pricey now, but I wanted the OEM tire look.