In the mid-20th century, Chevrolet revolutionized the automotive industry by infusing mid-size cars with unprecedented ...

Only around 1,200 Super Sport Impalas came with a convertible roof, a 409 V8, and a four-speed manual transmission, so expect ...

Mechanically, Chevy's W-series 409 engine was a bored and stroked outgrowth of the 348-inch W-motor that was introduced in late 1957.

The four-barrel 409-cubic-inch V8 – 6.7-liter – was rated at 360 horsepower and 409 lb-ft of torque (365 PS, 555 Nm). It was the first year for the big-block engine, and only 142 copies were cast.