turbo 400 letter code for ls6 chevelle??
 

Just wodering if someone can help me with the proper trans tag code for a 70 chevelle ls6 turbo 400? any help would be great.

Re: turbo 400 letter code for ls6 chevelle??
 

It should be a CY suffix.
The date assembled was stamped in the upper right,and the serial No. was stamped in the lower right.

Re: turbo 400 letter code for ls6 chevelle??
 

More info posted by Rob Clary...

CY & CX 400THM

https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: turbo 400 letter code for ls6 chevelle??
 

my trans is a 1970 cb??

Re: turbo 400 letter code for ls6 chevelle??
 

What year is your CB trans. tag?
The CB suffix was used beginning in 1966 up to 1977 on many engine applications.
If it shows a 1970 production year,then it came behind a 1970 454 LS-4/345HP & LS-5/390HP Big Passenger series vehicle only.

Re: turbo 400 letter code for ls6 chevelle??
 

it is a 1970 trans with the cb code thanks for the info Rich