you can use any year block to keep the stock /6 k member you will need motor mounts and trans crossmember and the right trans slip yokeand of course a shifter and linkage i am doing the same swap only on a 65 valiant using a 318 with 4spd trans except i have a v8 k frame to use from a 70 plymouth duster the motor mounts you will need for a swap /w the 6 k frame are available from [schumacher creative services] out of washington state you can get a catalog from them at
www.engine-swaps.com i believe that they have just about everything you will need but a driveshaft i hope you can do this swap on your car then there will be another old mopar saved i am new to this site too so good luck and post me some pics or you can send the pics to my email too
[email protected] i live in florida and i will post pics of my car soon also hope this helps mark