69 Nova L78 TH400

[daleroe]

What makes a copo car? Whats the difference between a special order car and a copo? I realize this is not one of the 50 that were produced in July but was built in December. It was only after the engineers had specified the cars for Gibb that this package could have been ordered and the original owner would have to have known very early of the Gibb cars and codes to get this car so quickly. I think its obvious that this car was no floored by the dealer but was special order. I suspect that the owner didn't know the radio delete code since it only has an AM not an AM/FM radio.

[lowmile]

There were about 7000 big block Novas built in 1969 @ 5000 L/78's and @2000 L34's of those 7000 there were 1411 M40/turbo 400 cars built. There were only 1236 M40 Novas built in 1970. BB are getting more desirable all the time. Sounds like a neat car. What are your plans for it and do you have any pictures. m

[WILMASBOYL78]

Mark, do you have a breakdown between the L-34 and L-78 production for the TH400. There was supposed to be a difference in the high horse trans, I wonder if the code or ID tag was diffrent. Any thoughts....???

tw

[sYc]

In '68 the L-78 auto was coded CY, in '69 CX. I think Rob has posted elsewhere on here the internal differences between these transmissions and the ones going in the lower HP cars.

[Chevy454]

Here's a thread with the different parts that the CX & CY tranny carried in 1969...I've got an application code table somewhere, maybe I need to post it also...

https://www.yenko.net/ubbthreads/showflat...true#Post109754

[WILMASBOYL78]

Did I miss something, where is the thread??

[Chevy454]

No, I missed something...now it's there!

[WILMASBOYL78]

Now I remember seeing that thread the first time. Good info! So what is the difference between the 70 version with the CW code? Are they built to the same specs as the CY version?

wilma