It’s a GMC Sierra Denali pushed towards the brink.

Leave it to Texas tuning house Hennessey Performance to bring out the best in pretty much any vehicle, especially of the American variety. We here love our big trucks and Hennessey has tackled a fair amount of them, but the Hennessey Goliath 700 GMC SierraDenali is one of its more shocking builds.

Hennessey Reveals Earth-Shattering Goliath 700

In stock form, the 6.2-liter V8 puts out 420-horsepower. Hennessey was able to coax 700-horsepower out by bolting on a 2.9-liter supercharger, high-flow air induction system, and swapping out a bunch of internals like the camshaft and pushrods. There’s also custom engine management calibration to ensure you fully leverage all that new hardware. Like with its other builds, Hennessey verifies the results through chassis dyno testing and road testing.

Hennessey Reveals Earth-Shattering Goliath 700

It’s not just power which separates this from a run-of-the-mill GMC Sierra Denali, since the Goliath 700 also packs Hennessey’s Stage-1 Off-Road package. That means a nice six-inch lift and 35-inch tires wrapped around 20-inch wheels so ground clearance isn’t much of an issue for the off-roader. Lighting can be an issue when you’re far away from civilization, but this truck comes with an LED light bar in the middle of the custom steel bumper, plus four square LED lights. That bumper features a nice brush bar, but thankfully it doesn’t hide all the bling of the Denali grille.

Hennessey Reveals Earth-Shattering Goliath 700

Pricing for the Goliath 700 Supercharger package is a stout $26,995, while the Stage-1 Off-Road package will run you another $14,950. On top of that, you can add other goodies like a stainless-steel exhaust system, Brembo 15.1-inch front brakes, drop-down side steps, an electric retractable bed cover, and a Goliath-branded interior. Just remember you have to supply the 2019 or 2020 GMC Sierra Denali with the 6.2-liter V8 as well.

“The demand for upgrading luxury pickups is at an all-time high,” John Hennessey wisely observed in the official press release. Hennessey Performance will no doubt have zero trouble moving as many of these trucks as it decides to make. These trucks will command high prices in the aftermarket for the foreseeable future as well.

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