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Ready to Roam: Chevrolet Introduces Silverado ZR2 Bison

Autosphere » Fleet » Ready to Roam: Chevrolet Introduces Silverado ZR2 Bison
Chevrolet's 2023 Silverado ZR2 Bison. Photo Chevrolet

Building off the success of the recent Silverado ZR2 launch, Chevrolet introduced the first-ever special edition Silverado ZR2 Bison in collaboration with American Expedition Vehicles (AEV), a premium off-road aftermarket manufacturer, to unlock new heights in off-road capability for customers.

AEV has a strong track record for providing accessories that excel in overland expedition environments. The 2019 Colorado ZR2 Bison quickly became the most popular special edition package offered with the Colorado ZR2. Similar to the Colorado ZR2 Bison development, AEV and GM engineers and designers collaborated on the tooling and design to bring forth the Silverado ZR2 Bison.

“The Chevrolet Silverado ZR2 Bison is the ultimate half-ton truck for backcountry adventures,” said AEV CEO and Founder Dave Harriton. “The Silverado ZR2 Bison checks all the boxes—robust stamped steel bumpers, complete underbody protection, a factory-tuned off-road suspension and locking differentials front and rear. We are confident off-road enthusiasts are going to love this truck.”

Improved off-road stats

When compared to the 2022 Silverado ZR2, the Bison is expected to feature improved off-road stats for overlanding adventure. The front approach angle increases to an estimated 32.5 degrees (compared to 31.8 degrees). The departure angle improves to an estimated 23.4 degrees (compared to 23.3 degrees). The trucks are expected to share the same ground clearance at 11.2 inches.

This truck reaches new levels of off-road confidence also in part due to the high-quality steel integrated into the AEV bumpers and underbody protection. The AEV-stamped steel front and rear bumpers are constructed of 3-millimetre-thick steel and are powder and e-coated. The press-hardened steel used for the underbody skid plates is three-and-a-half times stronger than an equivalent cold-stamped high-strength steel plate and provides incredible resistance to underbody damage.

The Silverado ZR2 Bison comes standard with:

  • AEV stamped steel front and rear bumpers with heavy-duty recovery points and integrated step pads. The front bumper is compatible with an available winch accessory
  • Five unique hot-stamped boron steel skid plates provide enhanced protection for the front, rear differential, transfer case and fuel tank
  • Steel rocker panel protection
  • A three-piece durable steel front bumper with integrated black, vertical front tow hooks
    Exclusive gloss black 18-inch AEV wheel paired with 33-inch Goodyear Wrangler Territory MT tires.

Bison customers will continue to enjoy ZR2’s standard features:

  • Standard 6.2L V-8 engine with 10-speed automatic transmission delivers 420 horsepower and 460 lb-ft torque to power through tough terrains
  • Multimatic 40-millimeter DSSV spool-valve dampers, which feature:
    • Three separate spool valves to control damping
    • Three connected chambers for fluid flow
  • Uniquely tuned springs that, with the Multimatic dampers, increase maximum front and rear suspension travel, compared to the Silverado Trail Boss
  • Front and rear e-lockers
  • Specific off-road chassis and suspension calibrations, including Terrain Mode, which allows one-pedal1 rock crawling

The Silverado ZR2 Bison exclusive body-colour grille bar provides contrast to the black grille design and prominently features the signature ZR2 badge on the front of the truck to the right of the iconic Chevy “flow tie.” On the rear, the bold black matte finish on the standard Multi-Flex tailgate is unique to the Bison design and allows the centred Chevrolet bowtie to stand out.

Tastefully integrated into the design, Silverado ZR2 Bison customers will enjoy discovering nods to the AEV collaboration throughout the interior and exterior of the truck, including the Bison decal on the side outer box and the AEV badge featured on the front headrests and all-weather floor liners.

2023 Silverado 3.0L Diesel Duramax Delivers More Power, Capability

Also new for the 2023 model year, the refined second-generation 3.0L inline-six turbo-diesel Duramax is expected to deliver additional power and torque.

This engine is primed to deliver a sizable increase in max horsepower and max torque for diesel customers. The max power is 305 hp and max torque 495 lb-ft, a 7.6% increase (460 lb-ft in MY22), thanks to several key component upgrades for optimum performance, including:

  • New steel pistons with a revised combustion bowl
  • Retuned turbo compressor
  • New fuel injectors
  • Improved temperature control features.

“These improvements to the popular 3.0L Diesel Duramax build on the already advanced design of the first-generation engine,” explained John Barta, Assistant Chief Engineer of Diesels Engines. “We often hear customers express their satisfaction with the outstanding fuel economy and smooth quiet power of the current diesel engine, so we can’t wait for them to experience this advanced engine made possible by the continued design evolution and advances in engine technologies.”

This refined diesel engine will be available on Custom Trail Boss, LT, RST, LT Trail Boss, LTZ and High Country, and will continue to be exclusively paired with a 10-speed automatic transmission for retail customers.

The Duramax engine will continue to be assembled at GM’s facility in Flint, Michigan, and will be available on select trims of the 2023 Silverado 1500 by the end of this year.

 

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