C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Valve cover gaskets

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Old Mar 13, 2012 | 07:22 PM
  #1  
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Default Valve cover gaskets

The cork gaskets I was using started leaking so I decided to replace with rubber gaskets as this is the third time I've had to replace them using cork. I started the car and there were leaks everywhere. Everything is lined up correctly, everything is tight and I am using the load spreaders. What did I do wrong?
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Old Mar 13, 2012 | 08:10 PM
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valve cover flanges not true
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Old Mar 13, 2012 | 10:08 PM
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I finally bought new valve covers to end the bbq effect on my iron head '85. IIRC the iron head covers just used RTV from the factory.
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Old Mar 14, 2012 | 12:04 PM
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pipe
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Fel Pro makes a nice set of blue rubber gaskets with a metal flat washer sandwiched in between so when you tighten them they don't get squeezed out. Pipe
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Old Mar 14, 2012 | 07:02 PM
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I have the thin Moroso stamped aluminum covers, and I use Fel Pro's like these on my iron head 85, except they're black. No leaks at all. IIRC they have like little fins on them that look like a windshield wiper. They also came with spreaders. I don't remember the PN but I got them at Autozone. They work great.
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