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Thread: Correct fuel line connections

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  1. #1
    Join Date
    Sep 2007
    Location
    Hutto TX
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    467
    So the tube side of those fittings you have linked goes to the cut-off end of the stock lines from the tank that end under your hood.

    How will you attach -6an to the fuel rail on your manifold is the next question....
    1991 Silverado ECLB
    LM7-T56

  2. #2
    Join Date
    Jun 2008
    Location
    SE Georgia
    Posts
    417
    Quote Originally Posted by r6z4o6 View Post
    So the tube side of those fittings you have linked goes to the cut-off end of the stock lines from the tank that end under your hood.

    How will you attach -6an to the fuel rail on your manifold is the next question....
    Those fittings are the ones that fit the fuel rail. They adapt it to regular pipe threads is the impression I am under right..?
    Tired ol' 5.7, 5.3 swap in progress
    Handle every stressful situation like a dog.
    If you can't eat it or hump it.
    Piss on it and walk away.

  3. #3
    Join Date
    May 2008
    Location
    Kentucky
    Posts
    144
    ok I went out and took some pics. Its dark so they aren't the greatest but they came out good enough.
    Fuel fitting pic is the quick connect fittings on the fuel rail. Green tab is 3/8" line and blue is 5/16" line. With male -6AN on each.

    Fuel adapter pic bottom 1 is 16 mm going into fuel filter. Top is where I took the union apart and has a 14mm thread. Both adapters have -6AN male fittings. Then I ordered the length of -6AN already made hose from jegs.

    I ordered way to long of hose but that will be fixed later once everything is running.

    Hope this clears it up.
    I totally understand the confusion. Before this swap I was used to just running the ole rubber hose to a carb and putting a clamp on it.


    This is the only thing that has worked for me so far. lol. its not leaking.
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    1996 GMC extended cab, 2003 5.3/auto

  4. #4
    Join Date
    Jun 2008
    Location
    SE Georgia
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    Do you have a link to the hose you ordered and how did you fix the length problems, cut and splice it in the middle?
    Tired ol' 5.7, 5.3 swap in progress
    Handle every stressful situation like a dog.
    If you can't eat it or hump it.
    Piss on it and walk away.

  5. #5
    Join Date
    May 2008
    Location
    Kentucky
    Posts
    144
    I haven't taken the extra length out yet. Right now I don't have the tools to redo the line. I would just take a rope or something and kind of mock up how much you need.
    An issue I ran into was not having alot of tools like for the an fittings etc. Have about every other but still need more.

    I can't find the part #'s I ordered on there website but in there catalog the part # is 5800 for the quick connects and 5090 for the adapters. They list them under TPI fittings. 14mm and 16mm.
    Hope yours is the same and nobody has changed fittings or lines in the past to something different if you know what I mean.
    1996 GMC extended cab, 2003 5.3/auto

  6. #6
    Join Date
    Jun 2008
    Location
    SE Georgia
    Posts
    417
    Ok I have someone that was going to do me custom lines but I was going to check their price against what you paid.
    Tired ol' 5.7, 5.3 swap in progress
    Handle every stressful situation like a dog.
    If you can't eat it or hump it.
    Piss on it and walk away.

  7. #7
    Join Date
    May 2008
    Location
    Kentucky
    Posts
    144
    Catalog

    here you go. Pro-Flo 200 series ready made hose assembly
    1996 GMC extended cab, 2003 5.3/auto

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