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COPO: On Special Order
COPO is short for “Central Office Production Order.” It was the Chevrolet department for fleet buyers and special-order vehicles. In fact, most muscle car tuners like Baldwin Motion, Yenko, and Fred Gibb Chevrolet ordered their Camaros and ZL1 models through this department. A COPO is often a barebones car with a 427 or 454 engine, which wasn’t available in regular cars.