Before American cars had officially “gone muscle” with the Pontiac GTO, the 1961 Chevy Impala Super Sport captured the formula nicely: upgrade a regular passenger car with the biggest engine the company could make producing as much power as it could muster. When you thought that Chevy had done it all, go a step farther […]

The post NASCAR Muscle for the Street: The Legendary Chevy Impala SS and Its 409 V-8 appeared first on MotorTrend.



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