Many of these minor purchases will be necessary even if you buy a crate engine, but keep in mind that the material costs of a DIY engine build will always be more than the incidental expenses ...
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 ...