<!–

–>

Hennessey is no stranger to taking some of America’s most popular pickup trucks and significantly increasing their performance. For its latest project, it developed a package for both the Chevrolet Silverado and GMC Sierra, and while not as insane as the 6×6 kits it sells for trucks like the Ram 1500 TRX and Ford F-150 Raptor, the upgrades are still noteworthy.

The kit, known as the Goliath 650, is offered for the 6.2-liter L87 EcoTec3 V8 found in both the Silverado and Sierra. The Texas tuner starts by bolting a 3.0-liter supercharger to the V8 before supplementing it with a high-flow intake system, high-flow intercooler, and a crankcase ventilation system.

Hennessey has then fitted chromoly pushrods, tweaked the engine software, and installed a stainless steel cat-back exhaust that retains the original tips. The changes lift grunt to 650 horses and 658 lb-ft (892 NM) of torque.

advertisement scroll to continue

[embedded content]

The engine and exhaust upgrades are available for the Silverado RST, Trail Boss, LTZ, ZR2, and High Country models alongside the GMC Sierra AT4 and Denali Ultimate. Those who own a Sierra AT4 can also opt to have their truck equipped with a distinctive off-road package.

This package adds a custom steel front bumper with laser-etched ‘Goliath’ lettering, an LED lightbar, additional LED driving lights, 20-inch Hennessey wheels with 35-inch off-road tires, and a suspension lift.

Read: Now Is The Time To Buy A Hennessey F-150 Raptor R 6×6 – If You’ve Got $500,000 To Spare

“GM offers its naturally aspirated 6.2-liter V8 in a range of very capable pickup trucks begging for forced induction,” John Hennessey said in a press release. “We bolt on a big supercharger to pull an extra 230 horsepower and nearly 200 additional lb-ft of torque out of the engine and then back it with a warranty for peace of mind. Our GOLIATH package is ideal for those seeking more power than the factory is willing to offer, whether on-road, off-road, or towing.”

Pricing details have not yet been released but, like all other upgrades sold by Hennessey, the Goliath 650 package is backed by a 3-year / 36,000-mile warranty.