Advertisement Video Turbocharged 6.7L Cummins H1 Hummer Swap ByEngine Builder on Feb 17, 2021 Close Video Watch Video Distraction Free Advertisement Diesel of the Week is presented by AdvertisementClick Here to Read MoreAdvertisement What happens when you combine an H1 Hummer with a turbocharged 6.7L, 1,500-horsepower Cummins engine? You get what Mountain Machine owner Steve Ortner calls one badass machine. Ortner’s Cummins swap is everything he dreamed it would be and more. Advertisement In this article:AMSOIL, Cummins, diesel, Diesel engines, Diesel of the Week Video: Diesel Engines Lacking Power? Video: 2,200 HP 7.3L Powerstroke Engine Video: 605 Drag Boat Engine Video: 1914 Stutz Bearcat 4-Cylinder Engine Advertisement VIDEOS Watch Engine Builder's latest discussions and explanations. SHOP Shop the latest Engine Builder merchandise. SUBSCRIBE Stay up to date by signing up for the Engine Builder newsletter.