Hennessey Announces Supercharged 800-HP Goliath Upgrade for Chevy Silverado and GMC Sierra
And It Just Revealed the 700-HP Version, Too!
Hennessey Performance Engineering (HPE), creators of the 6x6 Goliath, 6x6 VelociRaptor, VelociRaptor, and Maximus Gladiator, revealed its 700-hp Goliath upgrade for the 2019 and 2020 Chevy Silverado and GMC Sierra at the NADA (National Automobile Dealers Association) Show in Las Vegas, Nevada. It's called the Hennessey Goliath 700 with that fat three-digit power number coming thanks to a supercharged V-8. The company also has an 805-hp Hennessey Goliath 800 in the works, in case settling on 700 horses runs the risk of buyer's remorse. Any four-wheeled (as in, this isn't intended for the six-wheel creations) 2019 to 2020 GMC Sierra or Chevy Silverado trucks equipped with the 420-hp 6.2L V-8 can be Goliath'd.
The mainstay of the Hennessey Goliath 700 GMC Sierra Denali is the beefed-up 6.2L powerplant thanks to a Hennessey 2.9L supercharger package, touting a zero-to-60-mph time of 4.3 seconds. Modifications in airflow dynamics (high-flow intercooling and air-induction systems) as well as a few changes to the 6.2L's engine internals (custom HPE camshaft and chromemoly-hardened pushrods) support the boost in horsepower. To help convey the prowess of what growls under the hood, Goliath 700 badging, embroidered headrests, and serial-numbered dash and engine plaques adorn the truck. How much will it cost to supercharge your 6.2L GM, Hennessey-style? $26,950. (So, kind of equivalent to buying a brand-new base GM truck.)
Hennessey has announced info on a Goliath 800, and is currently in the process of building a duo. There is no pricing listed, but we can guess by the extensive modifications and labor that it's going to be a pretty penny. The jump from 700 to 800 hp necessitates a lot of engine work. Check out the parts/labor list for creating the Goliath 800's 416-cid stroker engine (the total is actually 805 hp at 5,500 rpm) topped off with the 2.9L supercharger system: block bored on three-axis CNC mill, CNC-ported cylinder heads, custom forged aluminum pistons, chromemoly-hardened pushrods, HPE hydraulic roller camshaft upgrade, hydraulic lifter upgrade, lightweight hollow-stem valves, extreme-duty dual valve springs, titanium retainers, forged steel wrist pins, stainless-steel long-tube headers, and a stainless-steel mid-pipe exhaust upgrade. The V-8 is mated to an upgraded 10-speed automatic transmission. If it's anything like Hennessey's 805-hp HPE800 for 2014-2018 GM V-8 6.2L Silverados and Sierras, we can basically expect to hit 60 mph in 3.9 seconds and rip across a quarter-mile in 12.3 seconds at 112 mph. Pretty peppy for a pickup truck.
Above and beyond the engine work, Hennessey offers some alterations to make the Goliath 700 and 800 a little hardier on the trails and more stylish on the streets. An Off-Road Stage 1 kit, for an additional $14,950, adds an aggressive stance to the Goliath and includes all the essentials: a front bumper with LED lights, 20-inch Hennessey 10-spoke wheels wrapped in 35-inch Toyo tires, a six-inch lift kit, and the obligatory Hennessey and Goliath exterior graphics. That extra ground clearance might come in handy when off-roading with gobs of supercharged V-8 horsepower.
The coolest trucks in the neighborhood deserve to have it all. With a fistful of extra cashola, Hennessey keeps its list of options for the Goliath 700 and 800 flowing by offering a handful of functional accessories and upgrades. These include a Goliath diamond-stitched interior, a Goliath Ram Air hood, Brembo front brakes, a stainless-steel cat-back exhaust system, a Goliath rear bumper, a power-retractable bed cover, and upgraded power fold-out steps.
All pricing listed above refers to the supercharged Goliath 700, but we can guess that the off-road package and additional accessories will be offered for the 800 at roughly the same rates. A Goliath 700 sporting all the bells and whistles—the supercharger, off-road package, and additional options—would run up a bill just south of $75,000, which could be double depending on the original truck purchase.
Sure, you could do it cheaper, but it wouldn't come with Hennessey's three-year/36,000-mile limited warranty (one-year/12,000-miles for the 800's engine), up to 200 miles of road testing prior to handing over the keys, and legit chassis dyno tuning.
If only money grew on trees