Is The Cummins 4BT Diesel Engine A Good Choice For An Off-Road Crawler Build? In a rock crawling off-road vehicle, engine torque is paramount. So, compared to the popular 4.0L inline six cylinder ...

If you're looking at the Cummins 4BT and 6BT engines for a potential swap, there are a few things you need to know. Right off the bat, both of these are formidable diesel engines, so no matter ...