Its fiberglass man.
Try it. If the holes are different, you’re only a drill, fill and paint touch up away from the emblems you want.
Can get a little expensive if you can’t do your own bodywork though. Probably run you somewhere around 500-1G if you have to pay for a shop to do it.
might be a little bit different contour to the 68-72 as well and it might not sit properly on the nose body lines. You prob wont know until you try it. Good thing is emblems are made of pretty soft “pot metal” like material and it reshapes fairly easily. You just have to be careful not to break them in the process or put hammer/vise/tool marks in them...