Slant 6 on a V8 k member?

Hello, I have a 1972 Swinger that originally had a 318 in it and I was wondering if anyone could tell me if it is possible/ what would be needed to make it slant 6 car without changing the k member. The motor I'm looking at buying is a 225 out of an '82 d150 so I know at least an oil pan change would be needed. Any help appreciated, Thanks.