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Old September 14th   #12
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Join Date: Feb 2005
Posts: 711
Originally Posted by Greg G
...If I remember correctly it had FORD embossed on it. Seems like the prefix of the ford part # was C9OX ? but I'm not totally sure. Still wonder what the X meant.
I'll be where I can look at it in a couple of months and post a pic.
If I'm not mistaken, the "X" was for Ford "Off-Highway" or "MuscleParts" program (i.e., over the counter performance pieces.)

Look here : "X" Explained

Although, there could be a little question about that since the 1967 Shelby 2-4V intake had part number C7ZX and came out before the actual MuscleParts program came into existence.
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Last edited by mgreene; September 14th at 06:05 AM.
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