Slant six to 360?

I am working on doing an engine swap on my 76 dart swinger, it has a slant 6 in it now and im thinking about putting a 360 in. I have a long block assembly on order, and i was wondering what parts if any as far as electrical and cooling i could use off of the slant six. Do I need a new radiator, ignition ect. I would greatly appreciate the help as I am new to all of this. Thanks, nick.