ConcoursMustang Forums
Restoring - General discussions that span across many different groups of years and models => Processes, Products & Techniques => Topic started by: Bossbill on August 10, 2022, 11:12:30 AM
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While I was diving into the various cork gaskets and their original colors and styles for my Shelby I came across this thread in which Scott from NPD lists the coating on the valve cover gaskets:
https://www.concoursmustang.com/forum/index.php?topic=24674.msg153509#msg153509
The black color on the 289 valve cover photo is certainly very dark and indicates this was not just a light coating.
I have my own ideas on how to apply a black, possibly neoprene, coating to the gaskets but thought others might want to share their methods.
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First I suggest we change the title of the thread to at least narrow the focus to 289 applications or 289-302. If we don't then your going to adding to the mix/discussion another group of finishes such as the silver painted valve cover gaskets for example
Consider that the gaskets that came with your valance covers may have not been supplied by For or the same supplier as Ford used originally
There are original gaskets that appear fully coated, complete painted black and others that only show black on the top and bottom surfaces like other cork gaskets used on engines. Concerned that we will mix Shelby applications and Mustang/general Ford applications with one another. Your also covering allot of years while gasket part numbers changed suggesting differences in production. Example from Scoots post it appears that your car would have used C6OE-6584-A a change from the neoprene earlier valve covers Scott showed in his example. At the moment I can't recall exactly but for 67 the visible surfaces of the valve cover might have been painted with the engine for non-Shelby
We're going to need to figure out which valve cover part number was used for each engine and year rather than blanket the applications unknowingly. I know I don't have engine assembly instructions and blueprints for every engine combination. Only a couple and one won't apply to this focus
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It appears that by the time your specific car was built they were no longer using the C2 gaskets but sure others with earlier engines may be interested in the neoprene coating
Here is a list of gaskets that were used to assemble an engine in mid 67 production showing the C6 valve cover gasket set. List of materials also showed the S2MR-6582-A and B valve covers as being used
(https://www.concoursmustang.com/forum/gallery/17/6-100822172627-17827233.jpeg)
(https://www.concoursmustang.com/forum/gallery/17/6-100822170803-17821651.jpeg)
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As a side comment the reference that Scoot mentioned that the layer of neoprene on the gaskets the text described could be as little .001 or as thick as .005 almost nothing more than coloring and a protective layer at most on the FE gasket mentioned
"ESA M2D69-A neoprene coating .001-.005 thick per side"
ALso the thread appears to not cover the 67 -up period for small blocks or 351 engines
Just an observation in the post
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After viewing literally dozens of tales of woe about 67 GT500 valve cover gaskets on the SAAC Forum I found one mention of the 67 GT350 valve cover gasket that mentioned they were just cork.
Removed my comment about tabs and made a new post on the main gasket thread.
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After viewing literally dozens of tales of woe about 67 GT500 valve cover gaskets on the SAAC Forum I found one mention of the 67 GT350 valve cover gasket that mentioned they were just cork.
Removed my comment about tabs and made a new post on the main gasket thread.
If judging is a concern or consideration believe you will find that they are looking currently for cork gaskets finished to look like the example I posted in reply #2 above for your 67 GT350
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Jeff -- I had more comments but I removed them and added them to the Shelby gasket thread.
That left my comment as doubting your replies, which was not intended.