In this modern horsepower race of American muscle cars, supercharged V-8 engines have reached an astonishing 1,000 horsepower, propelling vehicles to quarter-mile times in the single digits. In the realm of naturally aspirated engines, there has been an escalation, though not as dramatic, and it appears that Ford has emerged victorious. The 2025 Mustang’s 5.0-liter Coyote V-8 offers 480 horsepower in the GT model, with an additional 20 horsepower in the Dark Horse version. Yet, this can’t help but evoke memories of the Golden Age of American Muscle, where engineers truly knew how to craft a remarkable internal combustion engine. The 1970 Chevrolet Chevelle SS 454, with its near-equal power to the Mustang of 55 years later, was indeed a formidable engine.
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