Hennessey Performance Engineering has dropped a new video showing off the GMC Sierra AT4 in Goliath 700 guise. The three-minute video follows the pickup as it plows through mud, splashes across water, and scrambles over rocks.
The truck gets a suspension lift for extra ground clearance, sits on black Hennessey wheels wrapped in 35-inch all-terrain tires, and sports red brake calipers. A steel off-road bumper up front houses additional LED lighting, including a wide light bar and corner lights.
Goliath 700 badges are on the body, with Hennessey logos on the tailgate and wheels. In the video, the suspension works hard over bumps, and at one point a front wheel tucks way up into the arch while climbing rocks.
The Goliath 700 package is offered for the GMC Sierra and Chevrolet Silverado with the naturally aspirated 6.2-liter V8 L87. Stock output is 420 hp and 461 lb-ft (624 Nm) of torque. Hennessey bolts on a 2.9-liter supercharger, upgrades the intake, adds an intercooler, reinforces the pushrods, modifies the cylinder heads, and more. The result is 700 hp. This is a prime example of a truck built for serious off-road punishment.