help with k-frames

[bullfrawgs]

I have a 73-challenger 318 with a k-frame that has been hit and has a huge dent. I want to replace it. I have found a guy that has a big block k-frame with sway bar and control arms. Is there any difference that i should be aware of before i buy it? Are the engine mounts the same or would i need special mounts to bolt my small block to a big block k-frame?

[Chryco Psycho]

if the K Frame is from an E body it is identical , if it is frome a 71-72 B body it is also identical