If they are the same diameter as for a B/RB motor, that would probably be their main application, with a 195 degree F rating. If they are smaller than the B/RB diameter, they will also fit GM cars and 1980 and newer Chrysler LA motors, at 195 degree F rating. Not sure of the Ford thermostat diameters. For example, the same thermostat that fits my '80 Newport 360 is the same thermostat that fits a normal 350 Chevy motor, 1970s or so.
There might be some diameters listed in the RockAuto "INFO" page for each thermostat part number? Once the particular diameters and such are determined, clicking on the particular part number in the RA catalog will bring up a list of makes, and years.
At one point in time, seems like Mr. Gasket was selling knock-offs, so their part numbers might kind of coincide with the numbers you have?
FWIW,
CBODY67