Chevrolet introduces the 1978 Chevrolet Performance 4×4 pickup concept that combines classic style with modern performance and emissions compliance Monday, November 4, 2013 at the SEMA Show in Las Vegas, Nevada. The truck is powered by an E-ROD 5.3L system Ð an emissions-compliant powertrain package that includes an automatic-overdrive transmission, control modules, wiring harnesses and other key components all under one part number. (Photo by Isaac Brekken for Chevrolet)