I always make mine out of clear silicone.  I put a 3/16" bead and let it set up a while.  Then carefully install using a nut driver.  I also install 1/4" studs to guide the valve covers so they don't smear.  I never had a leak.  Wipe the excess off and your done.  Works for me with my stock covers everytime.
----- Original Message -----
Sent: Friday, March 04, 2005 4:06 PM
Subject: [Chevelle-list] VALVE COVERS

DOES ANYONE HAVE A SUGGESTION FOR A CURE FOR LEAKING VALVE COVERS. I HAVE A 70 SS 396 CHEVELLE WITH THE OEM CHROME VALVE COVERS AND CAN NOT KEEP THEM FROM LEAKING AROUND THE EDGES. I HAVE BEEN VERY CAREFUL NOT TO OVER TIGHTEN THEM SO AS NOT TO BEND LIP.  IS THERE A PREFERRED BRAND/TYPE OF GASKET OR SHOULD I TRY A SEALANT. IF A SEALANT IS BEST SHOULD IT GO ON HEAD SIDE OR VALVE COVER SIDE OF GASKET OR NOT US A GASKET AT ALL WITH SEALANT. POSSIBLE STUPID QUESTION BUT ANY SUGGESTIONS WOULD BE APPRECIATED. THANKS, LES.

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