CRG Discussion Forum
Camaro Research Group Discussion => Maintenance => Topic started by: jdv69z on May 02, 2007, 03:08:26 PM
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I am going to install a new set of headers in my 69 Z in the near future, and wonder what is current thinking regarding gaskets, etc. in order to get a good seal, minimizing exhaust leakage. It's alway been a headache. What's working for others?
Jimmy V.
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the aluminum gaskets i feel unless the headers have a really thick flange, they warp to EZ. I think the copper ones work the best
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We use the dark gray heavy-duty Mr. Gasket header gaskets. Have never had a problem with them and they seal well.
JM
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Thanks for the input.
Jimmy V.
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I have used the Felpro gaskets that come in the engine kits. The type that is perforated metal on one side. They have never leaked. Looks the best since they are 3 piece. If you use Thorley headers the backdrive can be made to work.
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The header flange bolts WILL loosen and cause exhaust leaks/gasket failure, unless you check them regularly or use either Stage 8 locking bolts or drilled bolts and safety-wire them.
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get your headers mounting surfaces milled then use ultra copper with quality bolts and lockwashers, and forget it. no leaks, nothing to ever tighten, i have been doing this for years and it works!
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Hi sd1968z28,
With milled flanges, are you using only ultra copper and no gasket, correct?
Thanks,
Jimmy V.
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yes no gasket.
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I have been using the black UltraSeal Mr Gasket for many years, they have served me well. For my Thorleys, I use the #5907 .