GT 40 P heads

Discussion in 'General Maverick/Comet' started by fordman, Apr 22, 2007.

  1. fordman

    fordman Member

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    what years were the GT 40 P head used on the explorer ????? anyone running this heads
     
    Last edited: Apr 22, 2007
  2. 69 ina 1/2

    69 ina 1/2 Fox body nut!!!

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    I think it was around 96 or 97 and later.
     
  3. scooper77515

    scooper77515 No current projects.

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    mine are off a 98, I think. Also on Mountaineers. Only for 3-4 years, I think.

    May want to look into non-P GT40 heads...just from experience...not necessarily good experience. They run very well, but are very difficult to get to the spark plugs on the driver side, and will need a spacer flange, 90* plug boots, AND $13 EACH shorty spark plugs to keep from burning through the plugs boots.

    Plus, you need to take the headers completely OFF to change plugs or even plug wires...

    But, RUNS GREAT!!!
     
  4. Slk70

    Slk70 Member

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    Come on... this is what craftsman and some others are in business for. They make tools to help get around this. I will run them, maybe not in the Mav, but in my Mustang which will have the same issues. maybe I'll change my mind after I go through the experience.
     
  5. streetrod77

    streetrod77 Member

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    I have GT40 & I did not have any problems with them. They came off a 95 Mustang Cobra.
     
  6. scooper77515

    scooper77515 No current projects.

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    The GT40s are fine, the Ps moved the spark plug angle almost straight out, which hits the header tubes on the driver side. Passenger side plugs are REALLY easy to get to.
     
  7. Grabber5.0

    Grabber5.0 Gear-head wannabe

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    I think you're on to something Scott, run two passenger side headers!! :rofl2:
     
  8. NAFORD302

    NAFORD302 Member

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    Gt 40s Are No Problem Changing Plugs In Them Were Easyer Than Stock Heads Was Headers No Problem
     
  9. eddie1975

    eddie1975 Windsor Specialist

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    :idea: :rofl:

    c9 heads ;) no spark plug clearence here
     
  10. fordman

    fordman Member

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    i was told some early explorers had gt 40 heads then the last years of the 302 explorers had the gt 40 p head like 1998 99.... is this true ?????????
     
  11. scooper77515

    scooper77515 No current projects.

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    Passenger side...

    [​IMG]

    Driver side...

    [​IMG]

    [​IMG]

    In the bottom picture, compare it to the 2nd one...those plugs are hitting right in the very center of the header tubes...
     
  12. PaulS

    PaulS Member extrordiare

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    Sounds like a job for a different set of headers.
     
  13. scooper77515

    scooper77515 No current projects.

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    The stock shorty headers that come on the later GT40P equipped cars may work. They are basically 4 tubes coming out and down into a collector. They may stick out from the block too far, but seem like a good place to start, maybe bend them around a bit to make them clear...

    The earlier ones used an iron manifold. The later ones had what appeared to be a shorty-tube (maybe stainless, the one I saw was still very silver and clean).
     
  14. Grabber5.0

    Grabber5.0 Gear-head wannabe

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    If I remember right, I emailed with a guy several years ago that used the special P headers on a Maverick. They didn't slide right in. :)
     
  15. NAFORD302

    NAFORD302 Member

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    I Think Steering Box Is In The Way Like On Mt Ranchero
     

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