Hennessey’s Latest GMC Sierra Has 700 HP And A Harley-Davidson Touch

Lets be real: no one needs a pickup truck with 700 hp. But would people want a pickup truck with 700 hp? Absolutely – and that’s exactly what this 2020 GMC Sierra from Hennessey Performance offers.

The Texas tuning company rolled out its Goliath 700 Supercharged upgrade package for the Sierra earlier this year and recently completed work on a special Harley-Davidson example.

The Harley-Davidson edition of the GMC Sierra is the fruit of a collaboration between the motorcycle manufacturer and Tuscany Motor Co. that builds each example in Elkhart, Indiana. It takes inspiration from the 2019 Ford F-150 Harley-Davidson pickup and benefits from no less than 65 changes over a standard Sierra.

Read More: Hennessey’s 2020 GMC Sierra And Chevy Silverado Goliath Will Obliterate A Civic Type R In 0-60 MPH Sprint

Key upgrades include an increased ride height thanks to a BDS suspension lift and new Fox shocks. Each model also features 22-inch milled aluminum wheels wrapped in 35-inch all-terrain tires, while other upgrades include orange accents around the front grille, a functional ram air hood, and an LED light bar.

To make the pickup even more unique, Hennessey’s Goliath 700 package, which can be fitted to all Sierra 6.2-liter models, sees a 2.9-liter supercharger running six pounds of boost mated to the truck’s V8 engine. Other modifications include a high-flow intercooling system, high-flow air induction system custom camshaft, Chromoly hardened pushrods, a crankcase ventilation system and new engine management calibration. This results in 700 hp at 6,300 rpm, allowing the truck to hit 60 mph (96 km/h) in an impressive 4.3 seconds.


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