2024 Ford Mustang Dark Horse Engine Horsepower. Ford has targeted 100 hp/liter for the dark horse engine, which will make this history's most powerful production mustang 5.0 at around 500 hp. Hennessey’s engineers have transformed the performance of america’s iconic pony car with a 70 percent power upgrade, achieving 850 horsepower, alongside boosted.

Bred as the next evolution of mustang performance, the dark horse takes that pony car formula and really kicks it up a notch. Hennessey’s engineers have transformed the performance of america’s iconic pony car with a 70 percent power upgrade, achieving 850 horsepower, alongside boosted.