The Chevrolet Camaro ZL1 is already a powerhouse straight from the factory, boasting a formidable 6.2-liter supercharged LT4 V8 engine. In its stock configuration, this engine delivers an impressive 650 horsepower and 650 lb-ft of torque. However, for those seeking truly extreme performance, Hennessey Performance, a renowned Texas-based hypercar manufacturer and high-performance vehicle creator with over 32 years of experience, takes the Zl1 Horsepower to an entirely new level with their EXORCIST upgrade. Now, they’re announcing a limited ‘Final Edition’ series of this famed enhancement, marking the end of an era for this iconic upgrade.
Hennessey’s expert technicians meticulously enhance the Camaro ZL1’s pushrod V8 engine. The transformation begins with a larger, high-flow supercharger and a high-flow air induction system to dramatically increase air intake. To support the increased power, the auxiliary fuel system, fuel injectors, and fuel pump are all upgraded. Delving deeper into the V8 powerplant, the cylinder heads are ported, and custom HPE camshafts are installed. Furthermore, critical engine components are replaced with high-performance alternatives, including intake valves, exhaust valves, valve springs, retainers, lifters, and pushrods. To manage the increased heat, an oversized heat exchanger is fitted for enhanced cooling. Finally, long-tube stainless steel headers and high-flow catalytic converters are added to optimize engine breathing and exhaust flow.
Years of rigorous research and development have culminated in the EXORCIST ‘Final Edition,’ which features a precisely calibrated HPE Engine Management software upgrade. This sophisticated tuning, combined with the extensive engine modifications, unlocks the full potential of the LT4 engine. The result is a staggering output of 1,000 horsepower and 966 lb-ft of torque. This represents a remarkable 54 percent increase in power and a 49 percent boost in torque compared to the stock ZL1 horsepower figures.
The performance metrics of the EXORCIST ‘Final Edition’ are nothing short of breathtaking. It catapults from 0 to 60 mph in a mere 2.1 seconds, conquers the quarter-mile in just 9.57 seconds, and achieves a top speed of 217 mph. These figures firmly establish the EXORCIST as a hyper-performance machine, exceeding even the lofty standards of the original Camaro ZL1 horsepower.
When Hennessey first introduced the EXORCIST in 2017, based on the sixth-generation Camaro Alpha platform, its mission was clear: to ‘slay the Dodge Demon.’ At the time, the Dodge Demon, a formidable supercharged Challenger, boasted 840 horsepower. Hennessey’s EXORCIST, with its 1,000 horsepower, decisively overshadowed its rival. Today, Dodge has unleashed the Challenger SRT Demon 170, engineered for drag strip dominance and producing 1,025 hp on E85 fuel. Despite this increase in power from Dodge, the Hennessey EXORCIST Camaro ZL1 ‘Final Edition’ remains a force to be reckoned with. Tuned for both racing circuits and everyday driving, it offers a unique blend of extreme power and refined drivability that the Demon, focused primarily on drag racing, does not emphasize.
John Hennessey, company founder and CEO, states: “Our comprehensive upgrade to the Camaro ZL1 is one of my all-time favorites. The chassis, suspension, and powerplant work seamlessly together, so all the driver experiences is raw, unbridled horsepower. There’s nothing else like our EXORCIST, so we’re eager to share this special limited edition with fans of this iconic car before it’s gone forever.”
Each EXORCIST ‘Final Edition’ engine is distinguished by a unique ‘Final Edition X of 57’ serial-numbered engine bay plaque, commemorating the 57 years since the Camaro’s original production debut. Complementing the engine badging, EXORCIST ‘Final Edition’ graphics adorn the exterior, further signifying the exclusivity of this limited run.
The Hennessey EXORCIST ‘Final Edition’ upgrade is supported by Hennessey’s comprehensive 3-year / 36,000-mile limited warranty, providing peace of mind to owners of this high-performance machine. Production of this final edition model is currently underway. For those interested in experiencing the ultimate expression of ZL1 horsepower, contacting authorized GM retailers or Hennessey directly through HennesseyPerformance.com or by calling +1 979.885.1300 is highly recommended.
