Is it possible that a 1973 A body K member

Why would a 73 k be in an original 70 v8 car? The spool motor mounts won't let the motor flop around if a mount fails.

FWIW, i had a 73 318 Dart parts car. Initially i used the upper control arms and spindles for a disk brake swap into my 68 Barracuda. I then used the K for a 360 swap in place of the /6. I never touched the 68 steering. A couple of years agoni swapped in power steering and used 73 steering so i could use the power box from the 73.