Under the hood is a ground-pounding supercharged GM LS9 376ci V-8 that generates 764 horsepower and 650 lb-ft of torque. This fuel-injected engine sports aluminum heads and roller rockers. Exhaust gases are evacuated by headers and a 3-inch-diameter exhaust system with Schoenfeld sprint car mufflers. A Bosch 210-amp alternator and a pair of Optima BlueTop batteries provide electrical current. A rear-mounted Ron Davis radiator and Pacific Fabrication blower intercooler are mounted close together and air is forced through them via a pair of 16-inch dual electric fans. Torque is sent through a Setrab-cooled, Norcal Transmission-built TH400 transmission with Hughes Performance torque converter to an Off Road Design Magnum Box and NP205 transfer case. A pair of custom high-strength Driveline Services driveshafts with 1410 U-joints spin the axles’ internals. Also interesting underhood is a custom shaft that runs from the firewall to the Warn 9.5xp winch. This setup allows Thorson to control the free spool of the winch from the cab.