Hennessey powers the 6.2-liter V8 engine used by the Chevrolet Silverado and GMC Sierra

Texas-based specialist Hennessey Performance is able to bring the mechanics of the vast majority of vehicles manufactured in the United States to the greatest extent possible.. But what is even more surprising are the “crazy” creations that take as their starting point the huge pickup trucks sold on the other side of the ocean, such as the Chevrolet Silverado or the GMC Sierra and many others.

But now we have to focus on these two mentioned, The Hennessey Performance team has developed a complete range called Goliath 650. Available exclusively to be combined with the L87 EcoTec3 engine, the massive 6.2L naturally aspirated V8 available in the Chevrolet Silverado and GMC Sierra. Both cars are actually “soul mates,” as the aforementioned engine delivers 426 horsepower and 625 Nm of torque.

Hennessey equipped the 6.2-liter V8 with a compressor to produce 224 horsepower

Clearly the numbers are not enough For the Texas specialist, Hence this core is no longer atmospheric thanks to the arrival of the volumetric compressor. But the Goliath 650 package from Hennessey Performance also includes a specific intake system, a large intercooler, full electronic management, as well as a full stainless steel exhaust system, which, although it retains the original terminals on both vehicles.

Thanks to all these improvements, The 6.2-litre V8 engine is now capable of delivering a combined power of 650 hp, plus 892 Nm of torque. Although the Texas boss has not commented on the performance of these massive pickup trucks, it is reasonable to believe that they will be much faster than when they left the factory.

The Goliath 650 package also brings aesthetic changes

Hennessey Performance says these engine and exhaust system upgrades are available for the Chevrolet Silverado RST, Trail Boss, LTZ, ZR2 and High Country, as well as the GMC Sierra AT4 and Denali Ultimate. Those who own a GMC Sierra AT4 can also choose to outfit their pickup with a premium off-road package courtesy of Hennessey Performance. And this is it This adds a custom front bumper laser-etched with the “Goliath” name, an LED light bar, additional LED daytime running lights, larger 20-inch wheels with off-road tires, and suspension improvements.…

“General Motors is offering the naturally aspirated 6.2-liter V8 in a lineup of high-power, forced-induction pickup trucks,” John Hennessey said in a press release. “We've added a large supercharger to extract approximately 230 additional horsepower and approximately 200 Nm of additional torque from the engine, and then backed it with a warranty for your peace of mind. Our Goliath 650 range is ideal for those looking for more power than the factory intended In its offering, whether on-road, on-road or towing.

Hennessey offers a 3-year or 36,000-mile warranty

for now Pricing for this Goliath 650 package remains strictly confidential, like many of the improvements offered by Hennessey Performance. What the latter makes clear is that like the rest of the mechanical upgrades they offer to many other vehicles, this package has a 3-year or 36,000-mile warranty.