5.7L Vortec Valve Cover center bolts- O-ring, Rubber-Washer?

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eXo0us

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Apr 1, 2023
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Hello,

I got Oil mist on top of my Valve covers, not on the sides and not down the block just on top of the Valve covers.
I've cleaned the covers and the oil mist starts appearing again after a few hundred miles around the bolts.
Further minimal positive fuel trims, - so those might be the leak.

The Valve Covers have Fel Pro Gaskets, but I don't think the bolts have anything on them aside of metal washers?

I've googled for a while and can't seem to find good bolts with Seals. How are they supposed to seal with only metal on metal?

The only ones I found have crappy reviews: (do not buy)
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But that is essentially what I'm looking for, should I just get some EPDM washers?
 
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