V8 on 73 up k member?

As long as its a V8 K frame and not a slant six, its simple. (For a 340)You just get a set of 340 or 73+ 360 mounts or you can use 318 mounts but you will have to shim one side with washers.
If you have a slant K its going to take some modifications since one mount on a slant sits higher.
Yes my car has the slant 6 k member in it. I want to put a small block in without changing the k member.