76 Dodge Dart 225 318 conversion

There are a few ways to deal with this. "The deal is' that the K frames are different between 6 and V8. But you can modify the K frame if you can fab and weld, and there are what are called "swap" or "conversion" mounts that allow a V8 into a slant K member. However, one of the suppliers of these has been "out" I'm not sure they are back in gear on this.

Another way, if you are a good fabricator is to build (or buy) a "motor plate" but that is fairly radical and makes pulleys/ belts more difficult