Marlin, yes, all COPO Chevelle, sent to Canada, did have the same codes, I believe it was madatory. V48=heavy duty Coolant, ZQ7, was for the Canadian warranty booklet(both english&french writing, W84+additional fuel delievery. I beleive the ZV6=M20 four speed, as to ZV7=M21, and ZW1=M22. What I have noticed is, most of the COPO Chevelle's sent to Canada, had the NC8=chamber exhaust, and to think they only had a little over 700 Chevelles, receive this option. MIKE
