Valve cover gaskets

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scamp80602

Life Long MOPAR Man
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I'm in doing engine compartment detailing now, and I need to replace my valve cover gaskets. What's the best type? Rubber or cork? Thanks!
 
I personally like the rubber with the steel anti crush sleeves around the bolt holes. DONT over tighten
 
I am using MP composite valve cover gaskets. These have a steel core with rubber laminated to each side. I have 20K miles with 0 leaks and have had the covers on an off several times with the same gaskets. By far the best I have ever used.
 
As dgc333 says, use the MP ones. I ran them on my circle track car and had no leaks whatsoever, plus they are 100% reuseable. The rubber part is a light gray in color.
 
I called the local dealer for the rubber/steel gaskets and was told they are on a national back order. That was for the LA, Magnum gaskets were in stock.
 

dgc333 said:
I am using MP composite valve cover gaskets. These have a steel core with rubber laminated to each side. I have 20K miles with 0 leaks and have had the covers on an off several times with the same gaskets. By far the best I have ever used.
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What is the part # of the gaskets?
 
340duster said:
I used them on stock LA valve covers. They are availble for LAs and magnums too.
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I assume you also have LA heads, correct? Just making sure.

The reason I bring it up is I know they work great for a magnum headed engine because the magnum heads mating surface is milled flat but the LA heads are as cast which is pretty rough. I've had better luck with the cork gaskets than rubber/neoprene on my LA heads with aluminum valve covers but even their not leak proof. I was thinking about trying the new composite ones but wondered if they'd work on a LA head.
 
fishy68 said:
I assume you also have LA heads, correct? Just making sure.

The reason I bring it up is I know they work great for a magnum headed engine because the magnum heads mating surface is milled flat but the LA heads are as cast which is pretty rough. I've had better luck with the cork gaskets than rubber/neoprene on my LA heads with aluminum valve covers but even their not leak proof. I was thinking about trying the new composite ones but wondered if they'd work on a LA head.
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I have used them on stock LA valve covers on LA heads, and stock LA valve covers on magnum heads. All cases they worked without leaks. These were used on an oval track racer which typically sees extended periods of hot oil and high engine temps and other abuses. I didn't try them with aluminum valve covers, but they would be fine.
The new composite ones have a very soft rubber (it sees more like a urethane) which easily conforms to the shape of the gasket surface. And the rubber stays soft after use too. Once you try a set, you won't use anything else.
 
340duster said:
I have used them on stock LA valve covers on LA heads, and stock LA valve covers on magnum heads. All cases they worked without leaks. These were used on an oval track racer which typically sees extended periods of hot oil and high engine temps and other abuses. I didn't try them with aluminum valve covers, but they would be fine.
The new composite ones have a very soft rubber (it sees more like a urethane) which easily conforms to the shape of the gasket surface. And the rubber stays soft after use too. Once you try a set, you won't use anything else.
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Great!! Thanks for the info 340Duster.
 
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