It belongs to the folks at Unlimited Diesel Performance. Once a 248,000-mile, five-speed, long bed, beat up work truck, they revamped it completely. The engine was redone top to bottom (or rather, bottom to top) and is equipped with a girdle, half-filled block, heat-treated factory forged rods, Mahle 15:1 pistons, is fire-ringed, and has stock heads outfitted with upgraded valvesprings and pushrods. A set of 455/400 injectors and an SRP1 high-pressure oil pump complement each other, and an 88mm/66mm compound turbo system provide the 7.3L with plenty of air.
The little truck is expected to make between 700 to 750 hp at the wheels on fuel once live tuned, and 1,000 hp on nitrous. Talk about a little rocketship.