View Full Version : 1969 L-78 TH 400 tag ?
COPO_Anders
10-18-2015, 07:12 PM
Hi guys,
I´m going to look at a 1969 TH 400 later this week thinking of buying it for our L-78 Nova Project. What would the tag on the transmission look like if it is correct ? Pics please !
Thanks
Anders
William
10-18-2015, 07:50 PM
The CX TH400 tag was nicely reproduced over 20 years ago.
COPO_Anders
10-19-2015, 10:06 AM
I got a pic today showing CT-69. What was the application for such a trans ?
http://www.yenko.net/ubbthreads/pics/usergals/2015/10/full-666-33378-20151019_105927.jpg
COPO_Anders
10-19-2015, 11:22 AM
After Googling CT one source says it´s probably from a C10 or C20. If so, would a CT be much different than a CX when i comes to function ? Or are they basically the same ?
<<GRAEMLIN_URL>>/dunno.gif
WILMASBOYL78
10-19-2015, 05:34 PM
The basic transmission is the same...but there are a number of special features that were added to the CX units that lived behind the solid lifter big block cars.
There is a dedicated thread in this section that talks about the special features;
http://www.yenko.net/ubbthreads/ubbthrea...imil#Post102599 (http://www.yenko.net/ubbthreads/ubbthreads.php/topics/102599/cy-cx-400thm-differences-simil#Post102599)
The CX unit was a HD tranny...built to take the added torque of the hi-horse big blocks...it included a 6 lug hi-stall converter, hi-shift point governor and many other parts exclusive to the application. Any TH400 can be built to these specs...you just need someone who understands the details.
wilma
COPO_Anders
10-20-2015, 10:52 AM
Thanks Tom, great thread ! <<GRAEMLIN_URL>>/biggthumpup.gif That was just what I was looking for.
The CT transmission that I´m going to look at and probably buy is built to last, so I´m not worried about the torque of the L-78. But I´ll be looking for a CX trans in the future.
<<GRAEMLIN_URL>>/youguysrock.gif
BACKN 68
10-20-2015, 01:43 PM
I'm running a '69 CT tagged trans behind a GM 502/502 (street only) and haven't heard a whisper out of it in almost 10 years(?)- although the trans was rebuilt with the necessary "goodies". <<GRAEMLIN_URL>>/smile.gif
Kent
'68 Malibu
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