Stop in for a cup of coffee

shittyslant6 said
From what I found, it looked like the v8 k-frame had different mount surfaces that are higher up.
"V8'ing" a Slant K member

The driver side mount is identical on v8 and slant k frames, the difference is the passenger side. The slant passenger mount is lower and flatter.

If you can weld, you really can modify your existing frame to bolt up to factory v8 mounts a lot easier than that thread there.