Impala SS is powered by the all-new 5.3L small-block V-8 with Active Fuel Management technology, which regulates between eight-cylinder and four-cylinder operation and provides up to 8 percent improved fuel economy in certain light-load driving conditions. The 5.3L small-block V-8 is rated at 303 horsepower (226 kW) and 323 lb.-ft. (438 Nm) of torque.
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The Chevy Impala is a stylish, sporty sedan that is many things to many people - from a strong, reliable, fuel-efficient family sedan to a sleek and powerful performance car. That may be why Impala was the best-selling domestic car in 2005.
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