You need a different trans, wiring, computer, radiator..... Easier to but a whole new truck.
The 5.7 Liter Hemi had 345 Horsepower in 2007 & 2008 - went up to 390 horsepower in 2009
16
The stock 5.7 liter Hemi in a Ram Pickup is 348 Cu inches and 345 HP.
No
Bottom of the oil pan.
345
Divide by 100 to convert centiliter (cl) to liter
No
425 hp
four
It is rated at 390
7 quarts