69 Nova L78 TH400

**lowmile** · #1 01-03-2005, 06:40 AM

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** · #2 01-03-2005, 06:45 AM

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 · #3 01-03-2005, 06:49 AM

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 · #4 01-03-2005, 06:56 AM

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** · #5 01-03-2005, 07:00 AM

Did I miss something, where is the thread??

Chevy454 · #6 01-03-2005, 07:01 AM

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

**WILMASBOYL78** · #7 01-03-2005, 07:12 AM

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

Chevy454 · #8 01-03-2005, 07:14 AM

I would say so...but...

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