Hennessey Announces Supercharged 800-HP Goliath Upgrade for Chevy Silverado and GMC Sierra

Explore the Hennessey Goliath 700 and 800 Trucks


Overview of the Hennessey Goliath 700

The centerpiece of the Hennessey Goliath 700 GMC Sierra Denali is the powerful 6.2L V8 engine, enhanced with a Hennessey 2.9L supercharger. It boasts impressive specs, achieving a zero-to-60 mph time of just 4.3 seconds. Additionally, modifications to the vehicle’s airflow dynamics, including high-flow intercooling and air-induction systems, along with savoring enhancements in the engine internals such as a custom HPE camshaft and chromemoly-hardened pushrods, significantly elevate its performance. To showcase its dominance, the truck sports Goliath 700 badging, embroidered headrests, and serial-numbered plaques on the dash and engine.

Performance Upgrades and Specifications

Hennessey has also introduced the Goliath 800, which includes extensive modifications required to elevate the power output from 700 to 800 hp. This upgrade involves heartfelt engineering, including:

  • Block bored on three-axis CNC mill
  • CNC-ported cylinder heads
  • Custom forged aluminum pistons
  • Hydraulic roller camshaft upgrade
  • Lightweight hollow-stem valves and extreme-duty dual valve springs
  • Stainless-steel long-tube headers and mid-pipe exhaust upgrade

With the V8 mated to an upgraded 10-speed automatic transmission, performance parallels that of Hennessey’s previous 805-hp HPE800 model. Thus, the Goliath 800 can accelerate to 60 mph in approximately 3.9 seconds while tearing through a quarter-mile in just 12.3 seconds at 112 mph, making it a truly exhilarating truck.




Off-Road Performance and Style Features

To maximize off-road capabilities and enhance street style, Hennessey offers an Off-Road Stage 1 kit for an additional $14,950. This package delivers an aggressive stance, boasting essential components including:

  • Front bumper with LED lights
  • 20-inch Hennessey 10-spoke wheels with 35-inch Toyo tires
  • Six-inch lift kit
  • Eye-catching Hennessey and Goliath exterior graphics

The increase in ground clearance allows for better maneuverability in adventurous terrains, benefiting from the supercharged V8 horsepower.

Additional Features and Customization Options

With luxurious upgrades and accessories, the Goliath 700 and 800 can be tailored to meet any driver’s desires. Optional features include:

  • Diamond-stitched Goliath interior
  • Goliath Ram Air hood
  • Brembo front brakes
  • A stainless-steel cat-back exhaust system
  • Power-retractable bed cover
  • Upgraded power fold-out steps

A fully loaded Goliath 700 with all enhancements could approach a cost of $75,000, which may be eclipsed depending on the original truck’s baseline price.

In conclusion, investing in a Hennessey Goliath offers not just a remarkable truck but also peace of mind with options including a three-year/36,000-mile limited warranty alongside thorough road testing before delivery. The decision, however, comes at a price that reflects the cutting-edge engineering and lavish features packed into this extraordinary vehicle.

If high horsepower trucks fascinate you, consider exploring similar options within the realm of performance vehicles.


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