68 Barracuda 6cyl. vs. 318 K Frame Question
Yes. The 4 bolts on the body are the same location, suspension / steering mounts are the same. Some people have converted a /6 to V8 by welding on the V8 mounts in the correct locations. I recall seeing a how to but could not find it. There are also conversion engine mounts that will allow a V8 to be installed into a '/6 K frame.
Lot of good info here.
/6 K-Frame vs. V8 K