...Well I'am Not an Expert, but I can confirm your correct, those are the Mounts for the Original Radiator Fan Motors. There is a Steel 'Band' that goes around the Motor and Screws to those mounts with rubber grommets for Cushioning/Vibration Dampening, and there are small/tiny steel sleeves with-in each grommet to keep the grommet from being overly compressed.
Since I have aftermarket 'Sucker Fans' Mounted behind the Radiator, I Completely Removed (top to bottom) both of those mounts for a 'Cleaner' Look, through the Nose and to Angle the Radiator Forward. If you have seen photos of other Owners' Panteras, you can observe Most of Them have also, removed the mounts.
If You modify to a 'Lay-Down' Radiator, You have to remove those mounts from interfering.