valve body from the C5 in the C4 - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
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post #1 of 9 (permalink) Old 05-11-2007, 03:43 PM Thread Starter
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valve body from the C5 in the C4

I need a help. Iíve been recently rebuilding the C4 from 1981, which I want to put in my Mustang together with the 302/5.OL engine. After taking a closer look at it, I realized that I have to replace the valve body. In Poland, where I live, itís a real effort to get this kind of it. I got one but itís made for the C5. I wanted to ask you it would work if I put the valve body from the C5 in the C4 ?
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post #2 of 9 (permalink) Old 05-12-2007, 02:38 AM
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valve body from the C5 in the C4

The C5 valve body has a "piggy-back" valve to control the locking converter. you will need to have the locking converterand the C5 stator support. It is not a performance move - it will weaken the transmission.
What is wrong with your C4 valve body?
Paul
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post #3 of 9 (permalink) Old 05-12-2007, 06:49 PM Thread Starter
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valve body from the C5 in the C4

The previous owner had kept it somewhere in a humid place, most of valves and springs inside are rusty. I dont think it will work. Thanks anyway. I noticed today a slimilar valve body picture that i have, and there was written thai it is for C4, this guy who wants to sell me "c5" VB said that it is propablly from C5. After that i have checked.
(i havent got much kowledge about these trannys (about trannys at all )), i was looking at this site what kind of VB i have, and i didnt find exactly the same as mine codes there. BUT i found there something, i suppose that this new VB that i have, is not C5 but C4, so now, i want somebody to tell my if i can change VB with different VB codes,
Can i replace
VBody code N5-A, bottom D2AP-AA, top D4AP-CA
with
Vbody code 4Y-A, bottom C9AP-E, top C8AP-B
??
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post #4 of 9 (permalink) Old 05-12-2007, 07:05 PM Thread Starter
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valve body from the C5 in the C4

http://mmerlinn.tripod.com/trans/fdc4f/fbec4_s0.htm
this is the site where i was looking for
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post #5 of 9 (permalink) Old 05-12-2007, 10:46 PM
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valve body from the C5 in the C4

It is very hard to tell sometimes from the casting codes.If you are able to take pics and email them to me i can post them on here or else help you identify them .
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post #6 of 9 (permalink) Old 05-13-2007, 04:07 PM Thread Starter
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valve body from the C5 in the C4

ok. i will send these pics tomorow to you. thanks
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post #7 of 9 (permalink) Old 05-13-2007, 07:56 PM
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valve body from the C5 in the C4

Lock up in the C5 is totally centrifical and is all done in the converter.The extra piggyback on the valvebody has to do with shift timing upgrades.--Barry

<font size=-1>[ This Message was edited by: 63futura289 on 5/15/07 9:54am ]</font>
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post #8 of 9 (permalink) Old 05-16-2007, 01:17 AM
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valve body from the C5 in the C4

Ok the photos in the 4Y folder you sent are an early 66-69 type valvebody. It is the one where the manual valve has the spring loaded detent.

The second lot of pics in the N5 folder are a C4 valvebodyused from 72 up to 80's and will fit all later type cases C5 included.It has the manual valve that moves freely.
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post #9 of 9 (permalink) Old 05-16-2007, 01:18 AM
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valve body from the C5 in the C4

Also the early VB wont fit in the later case.
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