While the Impala nameplate remained pretty popular throughout the 1960s, not the same thing can be said about the SS model, whose sales declined gradually towards the final years of this decade.

Chevrolet Impala SS 427, or SS427 as it’s often referred to, was considered by many the icing on the Impala cake in the late ‘60s, coming not only with more power but also with a plethora of extra ...