There are thousands of ways you can pledge your allegiance to Harley-Davidson and the V-twin for which it stands when you're not actually riding one. Tattoos. Decals. Doo-rags. Scary lingerie. But until the Newport News Shipbuilding Company introduces the USS Willie G. aircraft carrier, this is the top of the aspirational food chain. The spec sheet alone tells you that much. Topped off with 300 gallons of diesel fuel, the luxuriously appointed, two-door Class 8 tractor weighs in right at 22,000 pounds. Climb-and we do mean climb-into the cab and that expanse of hood covers your basic Navistar Maxforce 15: an inline, six-cylinder, intercooled turbo-diesel carrying 40 quarts of oil and 42 quarts of coolant. Though it won't fit on our dyno, International claims 550 horsepower at the 2000-rpm operational rev limit. Torque, however, is the story, as the strongest Maxforce six makes 1850 lb.-ft. of the stuff-roughly equivalent to the maximum output of 20 of the Motor Company's Twin-Cam 96 twins. We're talking about some serious twist here, with a bling factor to match.