[JoeC]

Another interesting topic on the COPO cars is the production numbers. Some people use the number total of 1338 COPO Camaros and COPO Chevelles as derived from the number of engines produced, to estimate the number of cars built. The engines were built on a forecast of car production and I believe it is too easy to over estimate car production using engine production (for COPOs) since it can be up to 98% inaccurate. There were situations where engines were assembled and stamped with a code for a car that very few were built. If you use engine production to estimate that particular cars production number you would be way off. An example is the 1969 ZL1 Corvette where over 100 engines were built and code stamped and 2 cars were sold to the public.
According to Chevy service documentation there were 700 COPO cars "in process" on July 7, 1969, including ZL1's, Yenkos, COPO Camaros and COPO Chevelles. It is not clear what they mean by "in process" but July is very late in the normal production year. If you take the 700 COPO's and subtract the 69 ZL1's, 198 Yenko Camaros, and 99 Yenko Chevelles you get 700-69-198-99=334 remaining COPO Camaros and Chevelles built as of July '69. If you take the L72 engine numbers estimate and subtract the Yenkos you get 1338-198-99=1041. That would be 1041 L72 engines left after July '69 for all L72 COPO except Yenkos. That's a big difference between 334 cars "in process" and 1141 remaining engines.
If Chevy said there were 700 COPO cars "in process" on July 7, 1969, then they would have to have built 638 (1338-700=638) more COPO Camaros and Chevelles between Aug. and Nov. of 1969 to match the engine production number? I know the 1969 Camaros ran late into Nov.'69 but I have not heard of many COPO Camaros with a trim tag date of Aug. or later and no COPO Chevelles that late so I find it difficult to believe they could have made 638 COPO cars after July'69. Yenko was the king of L72 COPO cars with his 198 Camaros and 99 Chevelles. Burger sold 50 Camaros and about 10 Chevelles. Other hi po dealers like Byrne Brothers in NY sold maybe 10 COPO Camaros and a few Chevelles. So L72 cars sales were not big numbers. Both Don Yenko and Jim Mattison clearly remembered the number of Yenko Camaros built as 500. In my OPINION I think Chevy must have told them they needed to build a minimum of 500 in order to pay for engineering and assembly cost of the L72 COPO but this was for all Camaros not just Yenkos. I don't think they built many more then 500 L72 Camaros and 200 L72 Chevelles in 1969. Again this is just my opinion.