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Old 08-09-2009, 04:41 PM   #1
unit91
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Question Rubber vs Cork valve Cover Gasket

Anybody ever use the rubber gaskets? Any better than cork? Do you need to put any oil, etc., on either one of them when installing?
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Old 08-09-2009, 04:48 PM   #2
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If you mean valve cover gaskets, I've never had good results with rubber. Since I have solid lifters, R&R of the valve covers is something I've done a lot.
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Old 08-09-2009, 05:24 PM   #3
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+1 on rubber if you are pulling them off and on, but in my experience tend to squeeze out if not torqued right. If they are staying on, I'd go with the cork held in place with some yellow adhesive....
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Old 08-09-2009, 05:28 PM   #4
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Felpro makes a silicone coated steel valve cover gasket that is reinforced at the fastener holes. you just snug it down and you're good.
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Old 08-09-2009, 05:31 PM   #5
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I use the Fel-pro cork gaskets, sealed to the valve covers. With stamped steel covers, this is the best way to get a seal.
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Old 08-09-2009, 05:47 PM   #6
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The Fel Pro rubber/silicone with the steel laminate core and reinforced bolt holes, like James said. You torque it down correctly one time and it's fine, it doesn't swell and shrink and get hard like cork does. I've used both and the steel cored rubber is 10x better, you just have to make sure the mating surfaces are clean and straight.
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Old 08-09-2009, 05:53 PM   #7
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Re-inforced rubbed is the only way to fly. They do make a black black viton type rubber though that works well with stock thin railed valve covers. You cannot beat steel cored rubber gaskets on a good set of thick valve covers. Off and on. Had the same pair for over 5 years.
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Old 08-09-2009, 07:58 PM   #8
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+1 on the rubber/silicone steel core gaskets. They also make an oil pan gasket like that and I've never had a problem with them.
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Old 08-09-2009, 11:31 PM   #9
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I haven't used a cork gasket in 6 years never had a leak on anything.
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Old 08-10-2009, 11:06 AM   #10
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I googled fel pro gaskets and was directed to JEGS.com and couldn't find any for a 6 cylinder. Only for performance engines. Well, excuse me! Any idea who might have the silicone coated steel valve cover gasket that is reinforced at the fastener holes for a 6 banger? NAPA has a cork reinforced with rubber gasket, and the plain cork.
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Old 08-10-2009, 11:06 AM
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