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Tonawanda plant was the only plant that built the COPO engines. Muscle Car did an article in April 1987 on the number of COPO engines built. Records show the following:
34-ZL1's with engine suffix MN (Automatic) F-Body 54-ZL1's with engine suffix ML (Manual) F-Body 1-ZL1 with engine suffix MV (this was for the prototype car) 1-ZL1 with engine suffix MX (this was the 2nd prototype car) 94-ZL1's with the engine suffix for the Corvette That would put the total ZL-1 engines at 184. Can anyone dispute these figures? If anyone wants a copy of the article, just let me know. |