The 4.7 is still offered in certain 2013 models and is a great solid engine, i prefer it because it ALWAYS runs on all 8 of its cylinder's, i personally do not like the idea of the 5.7 running on half it's cylinders at times although it does give it better fuel mileage but if i was worried about fuel mileage in the first place i would not have bought a Ram Truck i would have bought a Ford Fusion. If you are going to be hauling heavy loads up hills the 5.7 will give you more power though which i am sure you already know ...... oh and as a side note: If it were me i would try to get 3.92 gears on a 4X4 if you will be hauling very heavy loads and not the 3.21 or 3.55 whether you get the 5.7 or the 4.7 engine, I have 3.55 gears and a 4.7 engine in my Ram and it pulls my trailer up and down hills just fine but my truck is just a 2 wheel drive with 17" wheels and i don't pull huge boats or large travel trailers for that a lot on here say get the 3.92 gears if available but for normal stuff i can vouch that 3.55 gears are plenty good enough but some will argue that point though but for me they work fine and dandy.
