The biggest advantage to using a 4BT Cummins, over the standard 4.0L gas engine, in a rock crawler is the peak torque delivery occurring at around 1,600 rpm compared to the 3,000 rpm peak torque of ...
If you're looking at the Cummins 4BT and 6BT engines ... and their low-end torque make them very solid performers for off-roading. Of the two, the 6BT offers more performance, something that ...