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header gasket blues.

Discussion in 'The Hokey Ass Message Board' started by edweird, Apr 29, 2012.

  1. edweird
    Joined: Jan 4, 2009
    Posts: 3,187


    i tried these reuseable, never have to replace header gaskets from auto zone. i dont want to talk trash about someones product, but they leak.......BAD! i feel better now. oh yea, i bought a cheap set and they dont leak.

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  2. JC Sparks
    Joined: Dec 8, 2008
    Posts: 733

    JC Sparks
    from Ohio

    Maybe it is just the picture, but it looks like the hole in the gasket is to big for the hole in your header and it cant seal because there is no metal to gasket in the corners. What do you think? JC
  3. oj
    Joined: Jul 27, 2008
    Posts: 6,320


    Do you have a round header tube? I'm not being a smart ass, lots of headers have round tube at the flange and you need a round gasket, if the header tube is round and you use the square gasket they leak at the corners.
  4. tommyd
    Joined: Dec 10, 2010
    Posts: 11,667

    from South Indy

    Looks like what he said^^^^^^^^

  5. Retro Jim
    Joined: May 27, 2007
    Posts: 3,859

    Retro Jim

    What brand of headers did you buy ? If you buy the cheap ones they aren't always flat and true and can leak . You also might have the wrong headers for the heads you have too .
    Don't skip on cheap header gaskets either . And yes there are different styles of gaskets as well . Make sure you buy the correct gaskets for the heads and headers you have .

    Retro Jim
  6. F&J
    Joined: Apr 5, 2007
    Posts: 13,221


    Post 2 got it and Post 3 explained why. I can see the round imprint of the header, and it left a gap at the square corner.

    you hereby must send a written apology to A.Z. :)
  7. Engine man
    Joined: Jan 30, 2011
    Posts: 3,480

    Engine man
    from Wisconsin

    They look like sbc. Square ports. They might work with cast iron manifolds but header flanges are larger and more flexible so that gasket won't crush evenly.
  8. edweird
    Joined: Jan 4, 2009
    Posts: 3,187


    what yall say makes a lot of sense.i will check my ports tomorrow. i really havent paid attention.i very well could be a dum ass!
    Last edited: Apr 29, 2012
  9. pasadenahotrod
    Joined: Feb 13, 2007
    Posts: 11,776

    from Texas

    I have always used plain old manifold gaskets from Fel-Pro with a liberal bead of copper Silicone after carefully filing the flange welds smooth and checking them for faults. No leaks until I pull 'em off and try to reuse 'em, HA!
  10. iammarvin
    Joined: Oct 7, 2009
    Posts: 1,196

    from Tulare, Ca

    Why pull them off if the cheapies don't leak? Gonna have to buy more cheapies, and A Z does not care.
  11. i work at az.i always steer people away from themetal ones and towards mr gasket ultra seals.

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