Hennessey Gives 650 HP Upgrade to GMC Sierra & Chevy Silverado

650 hp, 658 lb-ft: Texas Tuner Boosts Power

Hennessey has introduced an advanced Goliath 650 upgrade for trucks equipped with a 6.2-liter V8, particularly the Chevrolet Silverado 1500 and GMC Sierra 1500. This enhancement promises to afflict remarkable capabilities to these vehicles.

These powerful pickup trucks receive substantial gains in horsepower with a supercharger boosting strength from 420 hp up to 650 hp. Torque too, sees significant improvement, rising from 460 lb-ft to 658 lb-ft. A high-flow intake system, crankcase ventilation system, and a high-flow intercooler all help to support the 3.0-liter supercharger.

Hailing from Texas, the tuner has engagingly meddled with the engine supervision software and HPE fine-tuning calibration. A set of Chromoly pushrods combined with a stainless-steel cat-back exhaust system have been fitted to the 6.2-liter V8 engine. Although the primary tips were preserved, Hennessey concludes that the motor offers a gratifying V8 growl.

GM’s 6.2-liter 8-cylinder motor likewise provides power to the Chevy Tahoe and Suburban, GMC Yukon, as well as Cadillac Escalade.

Supercharged GMC Sierra AT4 // Goliath 650 Upgrade by Hennessey

“GM has equipped its range of pickup trucks with a naturally aspirated 6.2-liter V8, and John Hennessey, CEO of the company, believes that the addition of a supercharger can extract an extra 230 horsepower and nearly 200 lb-ft of torque from the engine. ‘Our Goliath package is ideal for those looking for more power than the factory is willing to provide, whether for on-road, off-road, or towing purposes,’ Hennessey said.

Additionally, there is a Goliath off-road package which provides a wild aura to the Sierra AT4. It includes a customized steel bumper plus lettering ‘Goliath’ laser-etched on the front plate. The pack also comes with an LED lightbar and LED lamps for driving, and Hennessey 20-inch wheels enhanced with 35-inch all-terrain tyres. To top it off, elevate your ride even higher with an off-road suspension modification that raises ground clearance.

If you’re inquisitive, Hennessey claims their Goliath 650 tune is applicable on the Silverado RST, LTZ, ZR2 and Trail Boss models, plus the GMC Sierra AT4 and Denali Ultimate with the 6.2 litre V8 engine. For assurance of quality, they are offering a three year/36,000 mile assurance. Consumers can either ship their cars to Hennessey or acquire them straight away from authorised Chevrolet or GMC sellers.

Hennessey brings out the most thrilling of pickups with its VelociRaptoR 6×6. The Ford F-150 Raptor R provides the foundation to which a supplementary axle is added, creating a three-axle and six-wheel set-up that is virtually invincible. Unsurprisingly, it’s incorrigibly speedy with nearly 700 horsepower and over 640 pound-feet of torque at its disposal.

Do you fancy something reasonably evident but tremendously strong? The Venom 775 is an ideal bargain! With 775 horsepower, it offers a considerable force with inconspicuousness.

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