I measured the ones on my 73 super. The body of the visors are 41cm at their greatest width and 18cm at the widest depth point, which was close to the center, adjacent to the mirror. They are wider at the center sides and less so nearer the doors. These are original to the car. Sorry I do not have the OE part numbers.
If it were me, I would ask a vendor to measure their offerings. Did you get the EMPI or TMI ones from CIP?
And, if the CIP ones do not fit correctly, send them back.