2016 NPR HD Gas Reg Cab 150" WB Chassis Isuzu offers the only gasoline-powered LCF trucks in America. The gasoline-powered NPR and NPR-HD deliver unsurpassed performance, exceptional maneuverability and a long list of standard features. They are powered by a Vortec 6.0-liter V8 engine that produces 297 hp and 372 ft. lbs. of torque. This truck delivers that torque at low rpm for effortless pulling power. Plus, there is an optional CNG / LPG capable engine.