[Keith Tedford]

427 transplants into SS cars was the cheapest and most reliable route to go. With this package you already had the 12 bolt rear end and all the rest of the heavy duty pieces. If the Chevy II/Nova build sheets were like the ones for the Chevelle in 1969, the COPO code (9566AA in our case)shows up on the build sheet at the left hand side of the page below the list of options. The 427 engine code, not the 396 code, will show up in the engine code box at the top of the page. The L78 option shows up in the option list however. It seems like all the COPO Chevelles and Camaros had the specially heat treated 4.10 gears. A COPO Chevelle got the KQ rear end while the L78 Chevelles got a KK 4.10 rear end. I would assume that factory '69 427 Novas would probably have the same arrangement for the sake of durability.