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  1. #1

    Default What headers o use on a 85 mustang

    Want to change headers & still be able to use the heat control valve from the stock headers. Like a set that is not all crimped up will fit. Thanks

  2. #2
    Moderator wraithracing's Avatar
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    Unfortunately I don't believe anyone offers a direct bolt on set of headers for the 85 models at this time. Virtually everything is for the 86-93 models currently.

    You can make a set of those work, but it will require modifications on your behalf due to the differences between the OEM setups.

    If you are just liking for a better looking set or just a few extra HP, I am not sure its worth all the headaches IMHO. Hopefully some one here on FEP can be more helpful. Best of Luck!
    ​Trey

    "I Don't build it hoping for your approval! I built it because it meets mine!"

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  3. #3
    FEP Super Member sowaxeman's Avatar
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    Are the stove pipes really that important to keep...do they do anything beyond the warm-up period anyway? I remember as a teenager I put off-road true duals on both my 82 Capri RS and my 85 GT. Both systems were MAC, complete from headers to tips and I tossed the stove-pipes. I don't remember any ill effects other than the cat-less fumes.

    Like Trey said...depending on the rest of your system, not sure you are really gaining much unless you are upgrading the mid-pipe, mufflers and tails to a true dual system.
    Jason Smith
    MCA #65481

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  4. #4

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    JBA makes 85 headers. That's what I have for my 85,but mine are from the early 90's before Pertronix bought the header line from JBA.
    The heat stoves are welded to the second tube on mine, whereas the new style appears to clamp on.

    http://www.jbaheaders.com/detail_shortyV.asp?id=1621SJT

    Mike
    Last edited by JKengineering; 01-30-2019 at 01:22 PM.
    85 GT - owned since 87

  5. #5

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    hanks for the good information. Fran

  6. #6
    FEP Power Member
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    I had my stock ones ceramic coated. I doubt there is any flow limits without some major engine mods.
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  7. #7
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    Quote Originally Posted by KevinK View Post
    I had my stock ones ceramic coated. I doubt there is any flow limits without some major engine mods.
    I always wondered how good the stock headers flowed.i like this idea.how much is it to have a set coated?ill be taking off my original 85 gt exhaust this spring,and doing a h pipe and I already have Mac mufflers and Mac 3 inch polished tips.my motor is stock so don’t need anything more

  8. #8
    FEP Power Member
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    I believe it cost me $150-200 but that included sand blasting them too.
    Fox Body/3rd Gen MCA Gold Card Judge
    84 SVO 24K miles, 85 Mclaren Capri Vert. 84 GT Turbo Vert.
    88 Mclaren Mustang Vert 20K miles, 89 Mustang LX Sport Vert,
    03 Mach 1 7900 miles, 74 Mustang II, 69 Mustang, 67 Mustang, 07 GT500,
    14 Mustang CS/GT, 15 F150 FTX Tuscany, 16 F250 Crewcab, 67 Tbird 47K miles

  9. #9
    FEP Super Member cb84capri's Avatar
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    If your heads have not had the exhaust ports opened up, there is no point in putting an aftermarket set of headers on them... unless your 85 came with cast iron manifolds.

    Cale

  10. #10
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    Quote Originally Posted by KevinK View Post
    I believe it cost me $150-200 but that included sand blasting them too.
    thanks!

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