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Old 09-22-2002, 07:42 PM
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Post best valve cover gaskets

I just fired up my 406sbc tonight after a fresh rebuild do to a scorched bearing, just a tip for all of you if you're motor stutters consistently at 6200rpm in third gear at over 110mph, don't continue to let this happen for a month everyday at your local spot where you get on it, it might be detonation. Anyway my valve cover gaskets are leaking like a siv, they are the cheap thin cork ones that come in an overhaul set. What gaskets do you other sbc guys run?

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Old 09-22-2002, 08:51 PM
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I'm offended by your lack of respect for cheapness.As a member of the highly revered cheap society of america CSOA I feel your gaskets are fine.I use um but I put a little film of silicone(not half a tube) on the valvecover side of the gasket.Also if there the ones with two sets of holes on one side put that side toward the intake.
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Old 09-22-2002, 10:11 PM
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Pure silicone, apply to valve cover and then coat head with moly powder or even white grease. PUSH on valve cover while wet but don't put on the bolts. Once cured the next day pop out the little silicone nib in the bolt holes and torque normally. The grease releases the cover when you need to replace it, it's a custom silicone gasket that seals perfectly every time. Once your good at it you can get fancy with the different color silicones and get a nice squeezed bead protruding once installed.
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Old 09-22-2002, 10:16 PM
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Another believer in silicone.You the man!!!Go 4 jaw!!Go 4jaw!!!
How bout oil pans tell me I'm not the only one.
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Old 09-23-2002, 06:48 AM
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I always use cork. I tighten them down for a day or two, untill a indentation is formed by the heads. I pull them off, clean the cork with laqer thinner, then fill the grove with just the right amount of silicone. Let it stand untill no longer sticky, then I put the covers back on. No leaks for me!
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Old 09-23-2002, 06:55 AM
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Moroso 93020 perm-align, rubber with a metal core. Sure they're double the price, but if you're racing and do alot of valve adjustments than it's worth it.
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Old 09-23-2002, 07:10 AM
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The last ones I used are Fel Pro rubber, they seem to work good about $16.00 a pair. I've used cork in the past and never had a problem. I used them on a race car, drag, and removed and installed valve covers several times with the same gasket. Glue the gasket to the cover.
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Old 09-23-2002, 08:20 AM
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I have been using a product called "the right stuff" it comes in a can (like cheez wiz) and you apply it like rtv, but it isn't. I have noticed a significant reduction in oil under the hood since I used it on my valve covers.
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Old 09-23-2002, 09:30 AM
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I use silicone on all kinds of stuff, and I really like to use it on the intake gaskets,you know the really expensive fel-pro intake gaskets. I spray the intake manifold with silicone spray, and this allows the gasket to come off in one piece when I dissassemble. I even re-use the gaskets when I freshen one up.
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Old 09-23-2002, 11:41 AM
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Corks fine for me too. didn't use anything last time and no leaks-cause i haven't removed them to re-torq my head bolts tho. i have been throwing away the rubber pieces for intake and oil pan gaskets. i have had great luck with the intakes, but seem to screw up the oil pan due to them not lining up right or having enough (a mountain's worth) on the crank side. i have to r+r my pan now. intrigued by the silicon spray and 4-jaws technique.
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