'69 Turbo 400 code?

[JoeC]

To sum it up a little, The CY trans was used in 68 69 and 70? The CX trans is 69 427 COPO only? Anyone know of any CX trans in a non-427 COPO car?

[Chevy454]

OK, fellas, here is part of the documentation Ray has: 400TH INFO

[Mr70]

I must say this topic is getting very interesting for me.It all started on one mans outside inquiry.
Also to sum up:
The CY was definately used in 1970 LS-6 Chevelles,and up to 1974.
The CW was used on my L-78 1970 Chevelle,up to 1972.

CY first,then the CX later.
Rays documents look convincing for me to believe the CY trans was used in the 1968 Gibb Novas.The CY trans.was the one mentioned in the 7/12/68 letter.Not the CX as I thought.

The CX trans. wasn't out till 10/25/68.And COULD be specific for 427 COPO cars with 4:10 rears only?We need to look at serial #'s at the reunion for this,which I hope to attend.

A December built 1969 L-72 Impala used the CY trans.and not the CX.

The 1969 Special Hi-perf Corvettes used the CY code trans.,and not the CX.

I have never seen the CX trans.used in the 1970 model year.So it may be safe to say it was only used in the 1969 models.
Rick




[Edited by mr70 (08-19-2001 at 12:31 PM).]

[William]

The CX may have morphed into CW for 1970.
I believe that is what the 1970 Z28 used.

A friend has a COPO Camaro; the pop shows a CC trans...

[SS427]

Ok, went out this morning and verified a few more numbers, good news!

CY-69-1448 built 334th day of '68. Perfect for a December '69 car. It did have 6 torque convertor bolts as well. Looks to be 100% legit. Sad thing is, he won't sell!

If nothing else, I now know where to come when I need legit real information.
SuperCars

[Mr70]

Cmon SS427,get him to sell it to you.
Sounds like you would enjoy it more then he would.

[YENKO DEUCE REGISTRY]

ss427;
Did the trans have the VIN# stamped into the pan rail?
M

[Woj]

Originally Posted by JoeC

To sum it up a little, The CY trans was used in 68 69 and 70? The CX trans is 69 427 COPO only? Anyone know of any CX trans in a non-427 COPO car?

I have a CX trans from a 69 Nova L78.

All 69 Turbo 400s that I have seen have a yellow ident tag. No guarantee on that one though.

Also, Grady's 69 Camaro has the VIN stamped on the CX trans at the top of the bell housing. I don't have a picture of it, but the screw driver in these photos shows where I found the VIN on this TH400 Coded CA. FWIW.

Phil Woj

[WILMASBOYL78]

The 69 L78 Nova used the CX trans...along with L78 Camaro & Chevelle and COPO cars. 1970 was the first time the high shift point tranny was offered with a small block [Deuce and Z28]. It appears from the listings in Colvin's book, there were a number of applications for the CY coded unit up until 1974. Not sure if the shift points were lowered to match up with the engines available...it would make sense though.

**I have seen high shift point TH400's with the partial VIN stamped on the bell housing.

Originally Posted by Woj

I have a CX trans from a 69 Nova L78.

All 69 Turbo 400s that I have seen have a yellow ident tag. No guarantee on that one though.

Also, Grady's 69 Camaro has the VIN stamped on the CX trans at the top of the bell housing. I don't have a picture of it, but the screw driver in these photos shows where I found the VIN on this TH400 Coded CA. FWIW.

Phil Woj

[Mrlzybones]

My apologies William. I did not make the "model year" connection.