my 02 qc 4.7 was great! would hold 18 mpg at 75 mph. overhead cams ran great. same horse as old 5.2. only complant was running on cruise it would downshift every time u hit a little hill so to keep mpg up would have to drive by foot in hilly country. would not down shift when throttleing by pedal. my hemi hardly ever downshifts on a hill but since i bought a megacab 4x4 and it's about 2000 lbs heavier can't make any good report on milage. no mds on the mega. in the end the only substitute for cubic inches is cubic dollars. and the mds hemi may compare to the 4.7 on milage but some one who has been down that road will have to say.

 

HEMI ALL THE WAY!!!!!!

 

hemi hands down !! you can never have too much power !!

 

HEMI[size=4][/size]

 

HEMI!!![sm=goodidea.gif]

 

If you're not getting a CTD i'd def get a Hemi. The 4.7 is a good engine though...it's OHC so there's less parts to break and they usually run a little smoother. But like stated earlier, the 4.7 is better suited for a smaller rig IMO.

 

If you're not getting a manual transmission, get a hemi. The 4.7 is a good engine, but the gas mileage difference isn't much. Hell most of the hemi guys see better gas mileage than I do, and they're pretty much all in bigger trucks.

Though, if you look at the 08's, 4.7s are up to 310 hp/330 ft-lbs

 

quad cab 4x4 is a lot of truck... the hemi totes that truck around much better and can get better gas mileage if you drive it right... the 4.7 does great with the smaller trucks like regular cabs and 4x2's

 

Consider your uses for the truck, the 4.7 is plenty enough engine for normal driving/light hauling and towing. The hemi is a better idea if you expect to tow alot, or have a heavy foot. If you can swing it, Dodge has tweaked the 4.7 in the '08's, HP up to 310 now and with the 6 speed manual it's great fun to drive even the QC 4X4 is more than adequately powered.

 

Other considerations regarding new versus used include available interest rates, typically much lower for new than used, and the life time power train warranty. There have been some very good buyer incentives for new vehicle shoppers, and new car dealerships have been very flexible to deal with due to the soft market for full sized trucks. Expect to come in 8-10K maybe even more, below MSRP. You could easily find youself getting a lot more for your money than you expected.