The 1966 Chevrolet Impala SS 427 sits at a crossroads of big-block power and full-size comfort that still intrigues enthusiasts. Collectors now view this model as a bridge between early muscle ...

Chevrolet’s 427 big-block was the kind of engine that made full-size cars snarl at stoplights and eat pony cars for breakfast. In 1966, the Impala SS convertible could be optioned with this monster in ...