c4 trans

[wv 57s forever]

 
Help i need some info i just had what i thought was a c4 rebuilt, when it was almost finished the man told me it is a c5. My question is will the valve body for a c4 work in a c5.


thanks for any info

[JPotter57]

Allan, yeah, a C4 valve body will work in the C5.  Actually, C5 is a better trans, has 5 clutches in the drum, heavier case and stuff.  The valve body for C5 is not as good as the C4, which is why performance builds will add a C4 VB and convertor.  C5 convertor is junk, so figure on replacing it.  Later C5 had a lockup convertor, maybe early ones too, not sure.  I have build hybrid C4s with C5 clutch drums, etc.  You are safe with the C5.

[wv 57s forever]

thanks james i found out also that the bell housing has to be changed c4 is 7/8 of an inch shorter, will wipe out the front pump if not changed. hope that going from c6 to c4 will improve performance of the car.

[JPotter57]

Forgot about the bell, thats because of the crazy convertor I mentioned earlier, its a big one.  The C4 will be a lot better than the C6, as far as performance goes, its much lighter, and the reciprocating weight is much less.  Those C6s are heavy beasts, man...They are a tough trans though.  I believe you'll be happy with the C4/C5.  Tell me how it goes...