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Thread: guys running the gt40p heads, i need your help

  1. #1
    Join Date
    Mar 2008
    Location
    alexandria
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    201

    guys running the gt40p heads, i need your help

    i want to run l/t headers but no one make them for p heads. what kind of headers is everyone running with these heads? i know im going to probably modify the plug wires to run a different set of headers with these heads...
    thanks, Adam

  2. #2
    Join Date
    Dec 2006
    Location
    pissant town, IN
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    746
    I run these heads and use bbk 1 3/4" longtubes. Passenger side is cake on changing plugs, driver's side is a little close... I run those boots on #7 and #8....

    Some local people ran 1 5/8" bbk longtubes and couldn't get the #5 or #6 spark plug out... Good luck!
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  3. #3
    Join Date
    Mar 2008
    Location
    alexandria
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    so a set of 1 3/4 is the best way to go? i think the bbk long tubes are as much as the headers for the p heads are..... either way i really want to run long tubes

  4. #4
    Join Date
    Jan 2007
    Location
    felicity, ohio
    Posts
    66
    I ran 1 5/8 BBK long tubes but you have to make a plug socket to get the plugs out its kinda tricky but it works

  5. #5
    Join Date
    Feb 2004
    Location
    White Oak, OH
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    3,816
    I use to run the 1 5/8" mac lt's for a 5sp on my old set of p heads. Fit pretty good....had to use 90 deg plug boots on a few plugs.
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  6. #6
    Join Date
    Feb 2004
    Location
    cincinnati oh (pleasant run farms)
    Posts
    774
    i have 1 3/4 mac long tube on my wifes

  7. #7
    Join Date
    Mar 2008
    Location
    alexandria
    Posts
    201
    ok, so they are just a pain to replace plugs only? i can handle that.... i thought there was more to it then that lol thanks guys!

  8. #8
    Join Date
    Feb 2004
    Location
    cincinnati oh (pleasant run farms)
    Posts
    774
    Quote Originally Posted by mustang112 View Post
    ok, so they are just a pain to replace plugs only? i can handle that.... i thought there was more to it then that lol thanks guys!
    i found it was not to hard to due plugs and i used the ford motor sports 9mm wires that i had on the engine with the stock shorties..

  9. #9
    Join Date
    Mar 2008
    Location
    alexandria
    Posts
    201
    ok, thanks!!!!

  10. #10
    Join Date
    Feb 2004
    Location
    California KY
    Posts
    875
    next time your out here u can look at my 91 silver car it has p heads with lt headers u can see exactly what u r dealing with
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