Hennessey Upgrades 2020 GMC Sierra Denali To 700 HP

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A big truck deserves a big power rating.

The folks at Hennessey Performance Engineering have something of a knack for creating special, fast supercharged beasts out of V8-powered American passenger vehicles - a talent they've demonstrated time and again with factory vehicles like the Chevrolet Camaro ZL1 and Ford Mustang GT.

We should hardly be surprised, then, that the tuning shop has plied its trade on the all-new 2019+ Chevrolet Silverado and GMC Sierra 1500 - trucks that both offer the option of GM's latest 6.2L EcoTec3 V8. The result is what Hennessey has dubbed the Goliath 700 - a potent, aggressively styled, high-riding American pickup with an impressive 700 horsepower under the hood.

The one in this video might just be the first supercharged 2019+ GM light-duty pickup in the world.

Hennessey Performance
Hennessey Performance
Hennessey Performance

Granted, there's a lot more that goes into creating a Hennessey Goliath 700 than just bolting on a 2.9L supercharger. Each truck is given a full list of modifications that includes a high-flow air induction system with high-flow intercooling, a stainless cat-back exhaust, hardened chromoly pushrods, and even a custom camshaft using an in-house design. Hennessey embroidered headrests, unique exterior badging, and serialized dash and engine plaques are also standard.

For the more adventurous buyer, an off-road package is available in two different levels. The first boasts rugged Goliath front and rear bumpers, 20-inch Hennessey ten-spoke wheels with 35-inch Toyo off-road tires, five front-mounted auxiliary LEDs, and a 3.5-to-4-inch lift, depending on trim. The second makes use of bigger 37-inch Toyo tires, a 6-inch lift, and upgraded electric fold-out side steps. And still more equipment - things like six-piston Brembo front brakes, a power-retractable bed cover, and a full leather interior upgrade - is available.

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Hennessey Performance
Hennessey Performance
Hennessey Performance

Amazingly, the Goliath 700 isn't even the top of the range for Hennessey's tuned 2019+ Chevrolet Silverado and GMC Sierra 1500; an even more potent Goliath 800 is also available, packing 105 extra horsepower. We're not a hundred percent sure when a power rating for a full-size truck crosses into the realm of "overkill," but we're certain that we don't care.

Hennessey Performance
Hennessey Performance
Hennessey Performance
Hennessey Performance

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