73 Motor Mount Bushings

Is the bushing in the 340 motor mount the same as the 318? The mounts are different I know, but need to know if the bushing is the same. Classic Industries has the new rubber mount bushings but only lists the 318 for the A body mount bushings. I am thinking they are the same as I know one side is the same mount for 340 or 318 where as the other side is slightly different. That said the bushing could be the same. Just want to know before I order them, get them, and find out the one side bushing is different. Any help would be greatly appreciated. Thanks.