Posts Tagged ‘Iroc’

The Z28 is the most renowned Chevrolet RPO code. A high-performance option code has no equal. Known packages like Z22 and Z27 used other option codes, but the option names/descriptions became renowned, not the RPO number. The Special Performance Package is not used. RPO Z28 ran from 1967 until 1974. 1975 and 1976 had no…