vtails

If I were to determine if an early 1970 440-6 pack engine were original what would a novice to Mopar products look for. I am familiar with date codes and casting numbers and such related to GM but not Mopar. I just need to know which were unique to this set up and if there is a difference from a regular 440 motor. The build date for the car was October 1969 "E" body Also is there a difference in the "K" frames between a small block and a 440 motor. Thanks for any help.