My new valve cover gaskets are leaky on the drivers rear. They are cork. I didn't glue them down or anything. Should I get the rubber kind? Silicone these down? Suggestions?

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my 67 droptop (http://www.mdesignstudio.com/chad/other/mychevelle2.jpg)

Interior (http://www.mdesignstudio.com/chad/other/interior.jpg)

big block (http://www.mdesignstudio.com/chad/other/motor.jpg)
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Dad's 67 droptop (http://www.mdesignstudio.com/chad/other/dads67.jpg)

I usually use a film of form a gasket or some silicon to 'glue' them to my valvecovers, let them sit for 10 min to set, and install. This is with chrome cheapy valvecovers. I also use the spreaders. I hate these cheap chrome v-covers, but it's on the stand so what ya gonna do? http://www.chevelles.com/forum/smile.gif

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1967 Malibu
406 cid / 350 TH

I use cast aluminium covers. I Permatex cork gaskets to the covers. Let sit 1 hr. or more, tighten them down. The following day or two, I remove them again. There will be a slight indentation in the cork. I clean the cork with lacquer thinner, then put a medium bead of silicon in the indentation. I let them sit untill no longer sticky, then I reinstall the covers. Works for me....No Leaks!

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73 Elky 350 TH400 Spending time with my son and giving him an alternative to drugs and gangs.

Ted -- love the sig line.
My boy is only 3, but I plan to do the same.

Cheers,
mark.
'71 Fodor
"Soon to be... 383"

I use the rubber steel core gaskets from Summit.The 3/16" thick ones.Like $12.95 a pair I think.No sealer,re-used many times without leaks.

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'86 firebird pro street
452 bbc 13.5-1,781 heads,
roller cam,48" Moser 12 bolt,4.56 spool,400t w/brake

<BLOCKQUOTE>quote:</font><HR>Originally posted by mls48341:
I use the rubber steel core gaskets from Summit.The 3/16" thick ones.Like $12.95 a pair I think.No sealer,re-used many times without leaks.

<HR></BLOCKQUOTE>

Would Napa have something like that?

Sure they do FelPro makes both cork and rubber. I use both for clearance.

If you are using stamped steel covers. be sure to flatten the rails. I used a nice chunk of oak ( a 10" pice of 2X4 would be fine) and a rubber mallet. Use the wood as your flat surface and tap the rails down flat against it.

Anyone run Comp Cams polymer covers? Whats the best gasket to use? The corks seem to always leak a little.



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T-Bone

Tbone65

I had a set of the harman? valve covers that were polymer i think cc bought them out and i found out if i tighted them to much that would make them leak. I just siliconed both sides of the gasket and then tightened them with a allen wrench

Hope that helps some Kevin

Cool, thanks for the info.That makes sense. The CC's have the wonderful finger knobs on them and Im always checking them for tightness, and they always seem to leak a little. I'll try siliconing both sides.



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T-Bone