Hennessey, the Texas-based hypercar manufacturer and high-performance vehicle creator, has announced comprehensive upgrades for General Motors pickup trucks with its ‘GOLIATH 650’ build. The new supercharged performance upgrade delivers an impressive 55 percent increase in horsepower and a 43 percent increase in torque — a warranty backs the upgrade.
The factory Chevrolet Silverado and GMC Sierra pickups may be optioned with GM’s naturally aspirated 6.2-liter V8 — the powerplant is the largest and most potent naturally aspirated gasoline-fed eight-cylinder in its class. Stock output is 420 horsepower and 460 lb-ft of torque, sending power through GM’s Hydra-Matic 10-speed automatic transmission with part- or full-time four-wheel drive.
Obsessed with ‘making fast cars faster’ since 1991 and determined to release the full potential of the GM’s engine, the engineers at Hennessey upgrade the Sierra and Silverado’s 6.2-liter V8 (L87 EcoTec3) with a robust 3.0-liter supercharger, high-flow intake system, high-flow intercooler, and a crankcase ventilation system. In addition, chromoly pushrods are installed, and the engine management software is enhanced with HPE engine management calibration. Lastly, a stainless-steel cat-back exhaust system (retaining stock exhaust tips) is installed to improve performance and soundtrack. The result is a dyno-proven 650 bhp and 658 lb-ft of torque.
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Would you like to learn how to make fast cars faster? Check out Tuner School where our classroom includes a chassis dyno cell and a 1/4 mile dragstrip - all on the Hennessey Performance campus!
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