i've decieded to restore my challenger and i want to try to find #'s matching parts. the guy i bought the car from has a few 318's around and my friend has one in his challenger that he may trade me for my 440 if it is the right one. but i want to see if the guy i bought it from has the origional motor. what #'s do i need to look for on the motor. how about #'s on other parts. any help would be great since this is my first mopar restoration.