Hennessey Supercharges Mustang Dark Horse To 850 HP

Hennessey introduced their H850 program for the Ford Mustang Dark Horse last summer and now the company has revealed the high-performance pony car has gone into production. On top of that, they’ve revealed performance data for the model.

Starting under the hood, the naturally aspirated 5.0-liter V8 has been equipped with a new fuel pump, upgraded fuel injectors, and a supercharger. They’re joined by a high-flow air induction system and a high-performance engine tune.

More: 2024 Ford Mustang Dark Horse Is The Most Track-Focused 5.0-Liter V8 Model Ever

Thanks to these modifications, the output rises from 500 hp (373 kW / 507 PS) and 418 lb-ft (566 Nm) of torque to 850 hp (634 kW / 862 PS) and 650 lb-ft (880 Nm) of torque. That’s an increase of 350 hp (261 kW / 355 PS) and 232 lb-ft (314 Nm).

The sizable jump in numbers is reflected in the real-world as Hennessey-tuned Mustangs with a ten-speed automatic transmission accelerate from 0-60 mph (0-96 km/h) in 3.2 seconds and run the quarter mile in 10.9 seconds at 133 mph (214 km/h). The stock model, on the other hand, requires 3.7 seconds to hit 60 mph (96 km/h) and runs the quarter mile in 12 seconds at 118.4 mph (190.5 km/h).

Photos Hennessey

Hennessey didn’t mention pricing, but said the H850 “delivers serious bang for buck alongside supercar-like performance and the glory of a supercharged V8 soundtrack.” The company also noted the model comes with embroidered headrests, H850 badging, and a three-year or 36,000 mile limited warranty. The vehicle can also be had with a manual transmission.

CEO John Hennessey remarked, “Our supercharged H850 Mustang Dark Horse builds on Ford’s commitment to provide automotive enthusiasts with passion products like the snarling V8-powered S650 Mustang. We’re excited to unleash Hennessey’s passion for performance on America’s most iconic muscle car with all the sights, sounds, smells, and sensations that get our blood pumping!”