The 6.4 BGE in my 2011 ram I bought a complete but burnt up 2014 truck for $300, hauled it 200 miles, sold the cats to pay for the truck and gas to go get it, re-gasketed the engine and put on eagle heads, cam and intake that I had slightly re-worked and it makes gobs of TQ down low and still pulls hard to about 5800 RPM. It is a much better truck engine than even a stock 6.4 BGE and gets much better MPG than my stock 2014 5.7 truck I had. Now I have extra 6.4 heads, 68RFE trans and a few other bits and pieces for something else another day, I also traded the frame and diffs for an 09 totaled 1500 that I robbed the hemi for another truck I fixed up and sold. Some day I'll get around to tuning this truck but in nearly 20,000 miles Ihave had zero issues with it.