Year: 1970. The Chevrolet Chevelle SS with its 454 cubic inch (7.4L) Big-Block V8 is a true icon of the American muscle car. Boasting an impressive 450 HP (336 kW), this vehicle offers top performance for those who crave speed and power at its finest. The RPO code Z15 indicates the Super Sport exterior package, which enhances the Chevelle SS's sporty and aggressive appearance. This 1970 model represents the pure essence of power and elegance in classic collector cars.