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Misc Items / Re: Thermactor anti-back fire valve identification
« Last post by Bob Gaines on Today at 06:51:22 PM »
Turns out that this is a 1967 390-4V/410/428 bracket.  A friend gave this to me, and he normally deals in Galaxies and Thunderbirds, so is likely a 428 part, which would make it the C6AE-2B290-C.  The Mustang 1967 390-4V would have used C6OE-2B290-C.  What about the GT500 428 PI engine - which of these would that have used?  The 428 PI drawing shows C6AE-2B290-C, but that is geared towards a police car not a Shelby.
The 67 GT500 would use the same part as the 67 390 4V in this instance. FYI the 67 GT500 is the same 67 428 PI engine but with duel fours added.
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Misc Items / Re: Thermactor anti-back fire valve identification
« Last post by J_Speegle on Today at 06:49:27 PM »
Turns out that this is a 1967 390-4V/410/428 bracket.  A friend gave this to me, and he normally deals in Galaxies and Thunderbirds, so is likely a 428 part, which would make it the C6AE-2B290-C.  The Mustang 1967 390-4V would have used C6OE-2B290-C. 

A couple of pictures to add to the discussion





What about the GT500 428 PI engine - which of these would that have used? 

Given the different intake and multiple carbs the valve was not attached like the 390 Mustangs/Cougars

Hoses were shortened and the valve was mounted right above and behind the pump and was held in place by just the rubber hoses attached to valve. Yes there is an incorrect non original hose clamp in picture



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Misc Items / Re: Thermactor anti-back fire valve identification
« Last post by jwc66k on Today at 06:34:16 PM »
Turns out that this is a 1967 390-4V/410/428 bracket.  A friend gave this to me, and he normally deals in Galaxies and Thunderbirds, so is likely a 428 part, which would make it the C6AE-2B290-C.  The Mustang 1967 390-4V would have used C6OE-2B290-C.  What about the GT500 428 PI engine - which of these would that have used?  The 428 PI drawing shows C6AE-2B290-C, but that is geared towards a police car not a Shelby.
Ya wanna fix some more "2's" to "9's"?  ;)
Jim
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1967 Mustang / Re: 1967 PS control valve
« Last post by RoyceP on Today at 05:32:30 PM »
The important thing is that the hydraulic line style changed maybe around 1974. You can't easily use the later line style on the earlier cars and vice - versa. The cap can be swapped to fix the date issue. Often the attaching screws are changed to a later style allen cap screw head too. The screws on a 1960's era control valve would be a integral washer filister head with a straight slot screw drive.
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Misc Items / Re: Thermactor anti-back fire valve identification
« Last post by 67gta289 on Today at 05:02:23 PM »
Turns out that this is a 1967 390-4V/410/428 bracket.  A friend gave this to me, and he normally deals in Galaxies and Thunderbirds, so is likely a 428 part, which would make it the C6AE-2B290-C.  The Mustang 1967 390-4V would have used C6OE-2B290-C.  What about the GT500 428 PI engine - which of these would that have used?  The 428 PI drawing shows C6AE-2B290-C, but that is geared towards a police car not a Shelby.
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1967 Mustang / Re: 1967 PS control valve
« Last post by Bob Gaines on Today at 11:57:09 AM »
The date code is stamped on the cap. Rebuilders mix the parts up so the date stamp becomes meaningless.
+1 .Good point
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1967 Mustang / Re: 1967 PS control valve
« Last post by Bob Gaines on Today at 11:56:31 AM »
Yes Ford did change from 1/4 to 5/16 control valves in 67. As for 6-19-67date, I do not think there was a hard date for the changeover in the three plants.
+1. I typically examine Shelby's and I have yet to identify a late production 67 Shelby built that had the larger fitting that hadn't been messed with. This leads me to the conclusion that it was not a hard date for change over but more for that was when Ford stopped getting inventory of the smaller style which allowed on hand stock to work its way through the system. Of course the same scenario goes for the accompanying lower pressure hose too.
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1967 Mustang / Re: 1967 PS control valve
« Last post by RoyceP on Today at 11:49:26 AM »
The date code is stamped on the cap. Rebuilders mix the parts up so the date stamp becomes meaningless.
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1969 Mustang / Re: 1969 Firewall hole size needed.
« Last post by Scott302 on Today at 10:03:14 AM »
Thanks for trying.
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1967 Mustang / Re: 1967 PS control valve
« Last post by ruppstang on Today at 09:34:56 AM »
Yes Ford did change from 1/4 to 5/16 control valves in 67. As for 6-19-67date, I do not think there was a hard date for the changeover in the three plants.
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