I'm gonna have to disagree with you guys here... I'd take the voodoo 5.2 over our 6.2.
The voodoo actually builds torque quicker than the 6.2, and at 2-2.5k rpm, already makes more torque than the 6.2, so saying this motor is "unfit" for this truck is negative (is there better options, yes, but it can/would actually work great in this app). Plus with such a high rev range, you have a broader range per gear you can actually use in varying terrains (deep sand comes to mind). I actually find the top end of the 6.2 to be "meh" even though that's where peak power is at.
I personally see alot of benefits to having this motor in our trucks, yes its a different breed, but I think it could mate up well with proper gearing.