The First A body !!! Lance & Valiant

A lot of things are different the platform is similar but the car is narrower and the K frames for the 60’ to 66’ are the same but they are completely different from the 67’ to 76’ and not interchangeable…… Yeah Sinister is still watching
Ok thank you
So basically slant 6 to 318 conversion engine mounts etc will work on those crossmembers ?