The V8 may be a dying breed, but Ford is reportedly doubling down on its 7.3-liter "Godzilla" truck engine with a new, twin-turbocharged (Get it? Doubling?) prototype being tested in its Super Duty pickups. In its most basic, likely highly under-stressed form, Ford's big workhorse V8 makes a respectable 430 horsepower and 475 pound-feet of torque.