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Header Options

Discussion in '3sge' started by mephtar, Jun 19, 2008.

  1. mephtar

    mephtar Well-Known Member

    Im looking into my options for headers. I know that 2nd gen headers are a direct bolt on, but what about headers for a 3rd gen 3sge, are they interchangeable with 1st gen? Im not worried about having to fab something up to connect to current exhaust, mainly just wondering if they will bolt on and clear the starter or not.

    What other option do I have short of custom made?
  2. Mafix

    Mafix Owner Staff Member Administrator Donated!

    well you can also use FE headers i believe. for example i had the pacesetter header. i don't see why a 3rd gen or even a 5s header wouldn't work.
  3. mephtar

    mephtar Well-Known Member

  4. Mafix

    Mafix Owner Staff Member Administrator Donated!

    that one will not work at all. the engine code is wrong. that is for a 5th gen st chassis. which is a 7afe? something like that.
  5. rye

    rye Well-Known Member Donated!

    1st and 2nd gen 3sge header's are interchangeable....3rd gen 3sge's have a different bolt pattern
  6. mephtar

    mephtar Well-Known Member

  7. Mafix

    Mafix Owner Staff Member Administrator Donated!

    i'm not sure if they will clear the starter. but the first one is what i had.
  8. mephtar

    mephtar Well-Known Member

    I think ive found one that will work. 5s-fe header for an MR2.


    Looks like it will clear the starter fine, and from what i understand the 5s-fe is a 3s-fe with larger stroke. It looks like the correct bolt pattern and same port configuration.

    with some modification I think it will bolt up fine.

    I read a few places that 5s-fe header was interchangeable with the 3sfe and then 3sfe and 3sge have the same pattern and such, but can anyone confirm they have herd this too? or just take a look at the pictures and see if it looks like it would fit. Compare with this FE header for bolt spacing and port placement.

  9. Mafix

    Mafix Owner Staff Member Administrator Donated!

    looks right
  10. ST165-2765

    ST165-2765 Well-Known Member Donated!


    I think #3 & 4 cylinder ehaust pipes may have clearance issues with your rad/rad fans

    It looks to me like you have the starter down there and a couple inches out from that you have #1 & 2 cylinder exhaust pipes curving in and then out from that you have # 3 & 4 exhaust pipes. So that makes them stick out pretty far forward if they were to be mounted in a GTS.
  11. mephtar

    mephtar Well-Known Member

    thanks for the observation, ill check out the clearance soon, I woudlnd mind doing a but of modification to make the can and rad clear. Ill see what I can do. Is it possible to weld stainless steel with standard steel wire?
  12. rye

    rye Well-Known Member Donated!

    I copied and pasted this:

    Stainless steels can be welded using several different procedures such as shielded metal arc welding, gas tungsten arc welding, and gas metal arc welding.

    These steels are slightly more difficult to weld than mild carbon steels. The physical properties of stainless steel are different from mild steel and this makes it weld differently. These differences are:

    Lower melting temperature,
    Lower coefficient of thermal conductivity,
    Higher coefficient of thermal expansion,
    Higher electrical resistance.
  13. mephtar

    mephtar Well-Known Member

    Ive got my mr2 header, and yes it fits, yes it clears the starter. BUT its not so easy, need to modify the flange to make it clear the cross braces and will require some custom work. After 4 hours work and ive got it mounted, just not attached to the rest of the exhaust system

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