I am probably gonna have to buy a new engine for my 2002 Ram 1500 Quad cab with the 4.7. What would be the best brand to get for reliability and gas mileage and power. I also don't want to change any electronic controls either, so I would need something to fit right in. What do my fellow RamForumz friends believe would be the best? I just want to get a jump on things in case i can't get the one i have fixed.