Hennessey Performance


Chevrolet Tahoe Engine Upgrades

The ultimate upgrade for the 2023 Chevrolet Tahoe include a 3.0-liter supercharger system, a high-flow intercooling system, a high-flow air induction system, Chromemoly hardened pushrods, and a crankcase ventilation system. Hennessey® Performance harnesses the 6.2-liter V8 engine to deliver high-performance thrills to the capable SUV. 





Hennessey®, the Texas-based hypercar manufacturer and high-performance vehicle creator, has released a comprehensive new performance upgrade package for the Chevrolet Tahoe. Hennessey’s boost in output for late-model GM 6.2-liter V8-powered vehicles takes power from the mild 420 bhp factory level, to a wild 650 bhp – transforming the acceleration driving dynamics of the Chevrolet Tahoe.

Hennessey Performance

Testing for all Hennessey® Performance models begin at the company’s headquarters in Sealy, Texas. Under the guidance of our Research and Development team, each model line is subjected to hundreds of hours of research and development. This helps guarantee that Hennessey® Performance’s 2023 Chevrolet Tahoe performance parts enhance every aspect of the vehicle while retaining complete usability and manufacturer driving modes.


After lab-based evaluation, development moves to Hennessey® Performance’s various on-site dyno bays for live assessment. The final phase of tuning has development models of the Chevrolet Tahoe test at the Pennzoil Proving Ground at Hennessey® Performance’s headquarters. This final phase is performed to evaluate the 2023 Chevrolet Tahoe tune upgrade in the real world. Even after each model line is signed-off, every customer vehicle undergoes its series of quality assurance tests, including a detailed test drive by Hennessey® Performance’s engineers.

Hennessey Performance

Customer satisfaction is at the core of every Hennessey® Performance Chevrolet Tahoe performance upgrade and modifications package. Emphasizing this point, the company provides a comprehensive warranty on each 6.2-liter V8 2023 Chevrolet Tahoe upgrade to provide total peace of mind. Customers are invited to take final delivery of their new Hennessey® vehicle at the Pennzoil Proving Grounds in Sealy, Texas for the ultimate performance experience.

Hennessey Performance

Upgrades at a Glance


3 / 36,000


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Our team is very excited about this supercharging enhancement for GM's 6.2-liter V8, as it offers a huge audience of GM SUV owners the ability to bump power by 230 horsepower...that's a 55% increase in power.

Hennessey Performance



Hennessey’s engineering team fits GM’s popular 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. Chromoly pushrods are installed, and the engine management software is updated with HPE engine management calibration. Lastly, a stainless-steel cat-back exhaust system (retaining stock exhaust tips) is installed to improve performance and soundtrack. 

**Hennessey’s H650 calibration for the Escalade, Yukon, Suburban, and Tahoe removes General Motor’s “Cylinder Deactivation” and “Auto Start/Stop” feature permanently.

  • 650 bhp @ 5,500 rpm
  • 658 lb-ft torque @ 4,200 rpm
  • 0-60 mph: 5.3 seconds
  • 1/4 mile: 13.5 seconds
  • 3.0-liter Supercharger System
  • High-Flow Intercooling System
  • High-Flow Air Induction System
  • Chromoly Hardened Pushrods
  • Crankcase Ventilation System
  • Stainless-Steel Cat-Back Exhaust System
  • HPE Engine Management Calibration
  • All Necessary Gaskets, Fluids & Hardware
  • Professional Installation
  • Chassis Dyno Tuning
  • Road Testing (Up To 500 Miles)
  • Serial-Numbered Engine Plaque
  • Hennessey Embroidered Headrests
  • Hennessey Exterior Badging
  • 3 Year / 36,000 Mile Limited Warranty

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