CY & CX 400THM: differences & similarities

**lbnaz** · #1 03-08-2010, 04:38 AM

Hello, not trying to piggy back on this just saw it I have a CY with the 6 bolt convertor out of a 73 Z/28 if there is any interest. Larry

**61 vert** · #2 03-09-2010, 07:58 PM

I would like to see s picture of the tag. If you don't want to post it here I will PM you my email.

**copo-2** · #3 03-10-2010, 12:57 AM

The redesigned T-400 was coded CY. These were used in the Gibb Nova's and were the first built 400's designed for competition. While not having any reference at this time to look at, I believe the documentation I have shows the CX transmission being introduced on October 24, 1968? I have heard of the CY being used in later versions, but don't know what is documented on this?

**lbnaz** · #4 03-10-2010, 05:40 AM

photo will not load

**61 vert** · #5 03-10-2010, 05:37 PM

Here you go

**copo-2** · #6 03-10-2010, 06:40 PM

Took a couple of pictures of an original CY transmission with an untouched identification tag with Juno date of 534.
This is out of my personal Gibb Nova.

**lbnaz** · #7 03-11-2010, 05:26 AM

Hello, thank-you for posting the 73 photos. Larry

Jay_Dee_59 · #8 10-20-2023, 06:58 PM

Quote:

Originally Posted by lbnaz

Hello, not trying to piggy back on this just saw it I have a CY with the 6 bolt convertor out of a 73 Z/28 if there is any interest. Larry

It's kind of funny that I know Larry through Ebay transactions and that we both have the same CY code tranny out of a 1973 Z28 lol

This is possibly a dumb question but would a 1973 Camaro CY code tranny be internally identical to lets say a 1969 CY code trans ?

There is a big difference in the engines they would be mated to - 350 hydraulic small block versus a Hi-Po 427 ?

Thank you,
Jerry

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