Thread: Valve cover gaskets, thick/thin, rubber/cork
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Old 07-31-2009, 01:27 PM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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I have tried both cork and rubber. I now use rubber that are 3m Weatherstripped to the valve covers. Since I have solid lifters I can't completely seal them to the heads but I still run a very light smear of the gray RTV along the back sides after the covers have been torqued down (about 6 ft/lbs or so). They're about 99% oil tight. Not completely, but darn close.
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