If I didn't lose traction so easily with the 4.56 gears and stock tires I'm willing to bet my 08 4.7 with signature below mods listed would beat the 08 hemi, now the 09 on the other hand not too sure.

To the OP if it's the bed size and relative increase in engine power you're looking for I'd say look at an 08 4.7 or hemi truck prices and do the comparing to what you want to do. But I personally would love to trade up to an 09-10 White(Or black not sure) Sport QCSB Hemi