Chevrolet made 2,124 ‘67 SS427s and this car is 1 of only 158 or so known to exist today. Made for only 3 years (‘67 ‘68 ’69), the SS427 was not simply an Impala SS with a 427 motor. The SS427 was a limited edition factory drag car with a unique option code that denoted the special package (trim tag on the car is stamped with the “4D” code which denotes this SS427 option). The driveline included the 385 horsepower 427 (corvette) engine, special red line tach dash, choice of 4-speed manual or turbo 400 automatic transmission, 12-bolt posi and f-41 suspension. The body was distinguished by the domed hood with insert as well as special badging on the front fenders, deck lid, and front grill (the Impala name or logo does not appear anywhere on the car’s exterior). Royal Plum was the rarest of all of the factory color options. Chevrolet scrapped original plans to offer the tri-power intake and carburetors because it would have made the car faster than their flagship Corvette – which is something Chevrolet wouldn’t allow. However, as true fans, we just couldn’t resist.