Which of these two will give you more low end?? Thinking about doing one or the other later this summer and just looking to get some ideas. All I will add to it is a smallish cam and headers. I know it will depend on the cam for a lot of it.

 

6.0l.

 

i would say the 6.0 is gonna give you more low end. larger displacement is gonna help move the truck better down low.