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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Which headers fit? 1965 5.0 GT40p heads and 5 speed

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    12/14/2022 4:17 PM  #1

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Which headers fit? 1965 5.0 GT40p heads and 5 speed

    GT40p heads and cable clutch 5 speed. What headers will fit thinking someone mentioned some shortys

    Its really me....I fixed my caps lock .
     

    12/14/2022 4:39 PM  #2

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,490

    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    I can confirm that the JBA headers fit the cable clutch just fine.  Can't comment on the GT40P heads as I don't have them.  I will say that if you are planning a Borgesson power steering upgrade the JBAs will have to be dented on one tube to clear the box.  If I had it to do over again I think I would go with FPA headers.  My understanding is they clear everything without issue, still not sure of the head fitment though. 

     

    12/14/2022 4:43 PM  #3

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    What are FPA headers?

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    12/14/2022 6:45 PM  #4

    Bolted to Floor
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    From: Houston, Texas
    Registered: 4/01/2013
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    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    Ford Powertrain Application

    http://www.fordpowertrain.com/fpaindex/headers2.htm

    This is where I got the headers for my car. They weren’t cheap either. Not sure about cost for a small block car. I recommend getting them coated to keep them from rusting. I did have to dimple a tube….. the header coating did not get damaged.

    John  -- 67 Mustang Coupe 390 5 speed
     

    12/14/2022 8:08 PM  #5

    TimC
    I FYI 24-7

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    From: Wheaton, Illinois
    Registered: 4/01/2013
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    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    It has been awhile since Huskinhano posted on here, but he has the "P" heads.  Read post 11 from this thread:https://fyi.boardhost.com/viewtopic.php?id=10012

     

    12/15/2022 9:00 AM  #6

    Steve69
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    From: Madison Wisconsin
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    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    Bolted to Floor wrote:

    Ford Powertrain Application

    http://www.fordpowertrain.com/fpaindex/headers2.htm

    This is where I got the headers for my car. They weren’t cheap either. Not sure about cost for a small block car. I recommend getting them coated to keep them from rusting. I did have to dimple a tube….. the header coating did not get damaged.

       Do they clear a clutch cable?
     

     

    12/15/2022 12:38 PM  #7

    Bolted to Floor
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    From: Houston, Texas
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    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    Steve69 wrote:

    Bolted to Floor wrote:

    Ford Powertrain Application

    http://www.fordpowertrain.com/fpaindex/headers2.htm

    This is where I got the headers for my car. They weren’t cheap either. Not sure about cost for a small block car. I recommend getting them coated to keep them from rusting. I did have to dimple a tube….. the header coating did not get damaged.

       Do they clear a clutch cable?
     

    For my 390 car, a cable for the clutch is a no go..... not enough room.

    ​No experience with small block cars to make a comment. 
     

    John  -- 67 Mustang Coupe 390 5 speed
     

    12/15/2022 12:46 PM  #8

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    Yeah.....I almost forgot about Huskinhano ! He had some great posts and advice.
    Ya might look into MAC long tubes BILLY. They been around a long time so "maybe" their product is good and
    (most importantly) will fit.
    Give 'em a look. and let us know.
    6s6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    12/15/2022 1:38 PM  #9

    RV6
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    From: Pine Junction, CO
    Registered: 3/01/2016
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    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    I do believe MAC is no longer in business. 

    Gary Zilik - Pine Junction, Colorado - 67 Coupe, 289-4V, T5
     

    12/15/2022 3:52 PM  #10

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    I had Hooker Super Comps on my 66

    Its really me....I fixed my caps lock .
       •Thread Starter
     

    12/15/2022 4:52 PM  #11

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,490

    Re: Which headers fit? 1965 5.0 GT40p heads and 5 speed

    RV6 wrote:

    I do believe MAC is no longer in business. 

    My first thought was say it ain't so!  Sadly though, you're right, MAC is done.  Man, they were the workhorse of the 5.0 market for decades.  I must have installed half a dozen sets of them on Foxbody cars. 

     

     

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  •  »  Which headers fit? 1965 5.0 GT40p heads and 5 speed

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