318,340 or 360?

Try and find a 360 Magnum motor. WHY?!?! Heres the beauty of the Magnum motor.

Purchase the create motor cam, intake, springs etc....and make the same power since MoPar basicly starts with a stock bottom Magnum engine and add's parts. Oh, by the way, heads are also stock.
These engines are rated @ 380 with multi. mags doing dyno tests on these engines exceeding 400 HP.