The Texan tuning company has managed to build the ultimate off-road variant of the all-new 2019 Chevrolet Silverado Trail Boss Z71. Under the hood, Hennessey worked its magic on the stock 6.2-liter V-8 which pumps out 420 horsepower and 460 pound-feet of torque by adding its HPE700 upgrade, which adds a massive 2.9-liter supercharger that […]...
