I am about to buy a 318 out of a van. It's real cheap and I just want a motor to put in until I can build a better one. I remember seeing something about the mounts being different for a 318 to a 340, is this right? Also, is there any difference between the ones from a van versus a car? What else do I need to think about if I buy this motor? And is there a "swap" mount I can use or do I need to weld new mounts on the challenger? Thanks for the help yall. This is my first project car so I am learning as I go!