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Author
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Topic: differences between c6 and c4 trans
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Dubz
Gearhead Posts: 1781
From: Manitoba Canada
Registered: Oct 2002
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posted 07-07-2003 09:13 PM
   
what are the dimensional differences between the two transmissions? i found one site that says the both have the same 19 1/2" width at the bell, and the c6 is 33 1/2" long where as the c4 is 29 9/16"it also says the the "front edge to mount" is 18 13/16 on the c4 and 22 1/2 on the c6. So my question is, what would make headers fit the one and not fit the other??
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N266fords
Gearhead Posts: 1586
From: Spokane ,WA USA
Registered: Apr 2003
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posted 07-07-2003 09:20 PM
the c6 is wider as is the aod near the bell so headers designed to fit a c-6 will fit a aod and will give even more room to the 157 tooth c-4. the older 164 tooth was as wide as the c-6 and aod..the 164 tooth also had 11.75 inch bolt patter for the tq and the 157 use 10.5 the tq..Bruce
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jim1320
Gearhead Posts: 198
From: white plains, maryland, usa
Registered: Apr 2003
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posted 07-07-2003 09:33 PM
In racing c4 tran. are the best choice. lighter shift pattern is better. Easy to working more room around the header. jim1320------------------
1970 Mach 1 393 stroker cleveland best 10.99 @121.50 3550 lb car with exhaust
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Dubz
Gearhead Posts: 1781
From: Manitoba Canada
Registered: Oct 2002
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posted 07-07-2003 10:02 PM
i allready have a c6, and it's in wonderful condition, so don't really want to swap it out only to get headers to fit if they can be massaged ones that fit a c4
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clevelandstyle
Gearhead Posts: 1098
From: Connersville, IN
Registered: Jul 2001
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posted 07-07-2003 11:02 PM
When I ran a C6 in the Fairmont, the headers would touch the trans pan. It was almost impossible to keep the shift cable from touching the headers. After I switched to the C4, the headers had a lot of clearance and no more burnt shift cables.
I had no trouble with clearance around the bell. All of my problem was at the pan. C6 is a lot wider.------------------
Ben
Grabber Green '70 Mach I 351C 4V
Robbin Egg Blue '79 Fairmont 351C 4V
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Dubz
Gearhead Posts: 1781
From: Manitoba Canada
Registered: Oct 2002
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posted 07-08-2003 12:17 AM
would i be able to get the header collecters bent outwards to give it some more room??who would be able to mandrel bend 3" pipe?
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