that made the 1969 SS427 mechanically better than the previous versions in standard form. Although sales of 1969 Z24-optioned Impalas increased to approximately 2,455 units from the 1,778 Z03-optioned units of 1968, and high-powered big-block V8 engines continued to be available, there would be no Impala SS for 1970. The 427 was also replaced on the engine offerings list by a new Turbo-Jet 454 producing The 1965–1970 GM B platform is the fourth best selling automobile platform in history after the Volkswagen Beetle, Ford Model T and the Lada Riva. Gallery References External links Appearances of the Impala in TV and film 1967 Chevrolet Impala 4-door supernatural from popular TV-show Impala (fourth generation) Rear-wheel-drive vehicles Cars introduced in 1965