You don't want to put 360 heads on a 318. If you're doing this to help your friend, you will want to act like you know a little about Mopars and putting 360 heads on a 318 ain't acting like it. That will get his compression on a 318 down into the 7s. That won't pull a greasy string outta a cat's *** and will make you look like a dumbass, so lets not go there.