Ford 6.7L 1050 ft lbs TQ at 1,600 rpm, 475 HP at 2,800 rpm

Its hard to find heavier speced trucks for construction applications. Most everything is 12/40 on highway trucks at least in the US. I had a 378 Pete that was 20/46, my current Mack is 14/44. The heavy spec trucks bring good money when you can find them. By far, 12/40 is the norm.