Can someone tell me about this four speed that was taken out of a Yenko 40 yrs ago?

[Lee Stewart]

Using Chevrolet’s COPO, in October 1968, Yenko ordered 50 1969 Camaros with the RPO L72 engine under COPO 9561AA (M21 four speeds) and COPO 9561BA (M40 Hydra Matics).

In mid January 1969, Yenko received his first order of L72 COPOs, with Fisher Body trim code X-66. The X-66 trim consisted of a black painted rear panel and rear quarter louvers. A second group of 100 were ordered in November 1968 and began arriving in February 1969. These cars did not have the blacked out panels and louvers and were coded X-11 (bright moldings and trim) or X-44 (no chrome accents). A few more orders were placed before the end of the model year. Most COPO Camaro historians agree that Yenko ordered a total of 201 1969 Camaros for SYC conversion.





https://heacockclassic.com/articles/...amaro-syc-427/