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Author Topic: Header installation  (Read 3246 times)
jdv69z
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69 RS Z/28 52E


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« on: May 02, 2007, 10:08:26 AM »

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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Jimmy V.
camaromikey
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sevenzander82
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« Reply #1 on: May 02, 2007, 11:37:44 AM »

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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Jerry@CHP
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« Reply #2 on: May 02, 2007, 08:56:48 PM »

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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jdv69z
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69 RS Z/28 52E


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« Reply #3 on: May 03, 2007, 07:24:03 AM »

Thanks for the input.

Jimmy V.
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Jimmy V.
GaryL
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gandmal
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« Reply #4 on: May 03, 2007, 09:33:33 AM »

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.
« Last Edit: May 03, 2007, 10:50:33 PM by GaryL » Logged

Gary

Lemans Blue X33. DZ, M20, manual steering. Only BU code rear end is original.
JohnZ
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« Reply #5 on: May 03, 2007, 11:59:52 AM »

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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'69 Z/28
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sd1968z28
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« Reply #6 on: May 03, 2007, 03:52:35 PM »

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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jdv69z
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69 RS Z/28 52E


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« Reply #7 on: May 04, 2007, 10:25:36 AM »

 Hi sd1968z28,

With milled flanges, are you using only ultra copper and no gasket, correct?

Thanks,

Jimmy V.
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Jimmy V.
sd1968z28
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« Reply #8 on: May 04, 2007, 10:46:09 AM »

yes no gasket.
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zdld17
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dd1872
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« Reply #9 on: May 09, 2007, 03:02:36 PM »

I have been using the black UltraSeal Mr Gasket for many years,  they have served me well.  For my Thorleys, I use the #5907  . 
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Don Dabbs
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