mustangsunlimited I6 header help

Discussion in 'Technical' started by chevyandford71, Feb 22, 2012.

  1. chevyandford71

    chevyandford71 Member

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    So i got a header from mustangs unlimited and got everything off (manifold, ac compressor) and the header is hitting the bellhousing and shock tower. Anybody know how i can fix this and make the header fit without doing serious modification?
     
  2. Bryant

    Bryant forgot more than learned

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    was this header for a maverick?
    the classic way to make a header fit where it doesnt is to hammer the part of the tubes that touches flat till it doesnt touch. now this is not a good thing to do. it should be obvious why. you will kill the flow which is the benefit of a header.
     
  3. maverick75

    maverick75 Gotta Love Mavs!

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    Are you sure you got the right header? a header for a 200 will be different than a header for a 250.

    They might have sent you the wrong one, happens all the time.
     
  4. chevyandford71

    chevyandford71 Member

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    It said it would fit the 250, i can (hopefully) get photos up later this week
     
  5. maverick75

    maverick75 Gotta Love Mavs!

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    Check to see if it has a part number on the flange then double check it's the one you ordered.
     
  6. 71gold

    71gold Frank Cooper Supporting Member

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    I extended my collector 4"...:thumbs2:

    I think if/when you extend the tube it won't hit the shocktower...:yup:
     
    Last edited: Nov 6, 2012
  7. CaptainComet

    CaptainComet Large Member

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    Also, make sure your motor and tranny mounts are in good shape.

    When you say they are hitting, is that with the header bolted up to the head, or while you are trying to wrestle it into place?

    On V8 cars, you have to pick the motor up a few inches to get a driver side header in place.
     
  8. chevyandford71

    chevyandford71 Member

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    its hitting when im trying to fit it in.

    Ill be sure to check the part number
     
  9. Bryant

    Bryant forgot more than learned

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    dont crush the tubes then. you have to try a different way of putting it in. try from the bottom or try supporting the motor on a jack and taking out the motor mounts.
     
  10. chevyandford71

    chevyandford71 Member

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    if i do have to send it back does anyone know if the classicinlines dual out will fit?
     
  11. injectedmav

    injectedmav Member

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    Starter location on the 250ci changed at some point. high mount/low mount. I can't remember if the Maverick was included but that was an issue for some Mustangs and certain headers.
     
  12. mav1970

    mav1970 Bob Hatcher

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    It shouldn't hit the bellhousing no matter what car it is made for - if that's the case, it would still hit the bell with the engine hanging on an engine hoist :)
     
  13. chevyandford71

    chevyandford71 Member

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    I did get it in in such a way that the header wasnt hitting the bell housing anymore, the problem is one of the runners (i think number 6) is hitting the shock tower and wont go any further
     
    Last edited: Feb 24, 2012
  14. jdproper37

    jdproper37 Member

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    I have the same header...I have a 77 Maverick...low mount starter.....I was wondering if it would fit also....
     
  15. rthomas771

    rthomas771 Member

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    I think you're thinking about the 200. The 200 went to a low mount starter in 1980. The 200 also went to a dual bolt patteren for either the small or large bell housing in '67. Digging farther back in history...the '65 200 had hydraulic lifters and 5 freeze plugs, the pre '64 200's had 4 main caps, 3 freeze plugs and solid lifters. '63-'77 uses a 3-bolt harmonic balancer and short water pump. '78-'83 used a 4 bolt harmonic balancer and long water pump.
     

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