Copper Header Gasket Which Side Faces Head

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by from6to8, Apr 23, 2014.


  1. from6to8

    from6to8 There's suction so I used that end O_O

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    doing a search online it seems as if the metal side or asbestos side goes toward the header but mine is hard to tell which ones are being I am reusing them;copper. It appears that he possibly put them on right back when he did the current setup back in 05 but Im just making certain. Both sides darn near look the same so hard to tell also. Images below and I might as well take them things to work tommorow and clean them up.

    solvent tank and wipe off or degreaser and wipe off I guess header gasket side 1.jpg header gasket side 2.jpg
    #1
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    eek, spend a few bucks and replace those things
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  3. from6to8

    from6to8 There's suction so I used that end O_O

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    asked about them when i first took heads off to send to the shop and since all said they are reusable if nothing is wrong with them and they will serve same purpose i will just reuse them. Will look better once cleaned up
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  4. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    line up the flanges on your headers to see which side they were mated with
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  5. from6to8

    from6to8 There's suction so I used that end O_O

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    #5
  6. 84Ttop

    84Ttop They make new pistons every day, so why worry? SN Certified Technician Mod Dude

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    6 of one half dozen of the other really. It matters not which way they go on. I would put some high temp rtv on both sides of that before you cinch them down.
    #6
  7. from6to8

    from6to8 There's suction so I used that end O_O

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    i'd hate to put rtv on them lol

    if i have to do that so they wouldnt leak i'd just rather buy new ones. He didnt put rtv on it when he installed first time
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  8. mikestang63

    mikestang63 Mustang Master

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    IMO spend the $30 and buy a new set of Percy's gaskets and be done with it. Beats doing the job twice. I'm funny like that. I don't mind spending money on new gaskets and bolts. Cheap insurance and I'll save money elsewhere.

    At a minimum do what Nick said and spray each side with some copper RTV. Those look fairly beat up.
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  9. from6to8

    from6to8 There's suction so I used that end O_O

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    i was thinking he meant silicone rtv. I will ponder which way i want to go in that regard then
    #9
  10. Gearbanger 101

    Gearbanger 101 Straight Outta Locash Super Mod

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    I had the Mac copper header gaskets. Didn't fit worth a damn (didn't line up properly with the ports) and leaked pretty much immediately. Never again.

    I've got the Percy's gaskets in there now and won't hesitate to replace them when they're done.
    #10
  11. from6to8

    from6to8 There's suction so I used that end O_O

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    I do have the Mac shorties that I bought for the engine swap back in 02. I wonder if those gaskets came with the headers then in that case they are the Macs.

    Now I have a question. As long as the gasket where they bolt up at is flat then there shouldnt be a leak am I correct? I did notice a slight little buckle in between the flanges but there's no exhaust coming out there in between the flanges
    #11
  12. from6to8

    from6to8 There's suction so I used that end O_O

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    if i use a sealant and reuse mine, i will see if they have the small packs of copper sealant and place some around all ports
    #12

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