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  • Fuel rail fitting size

    On a 3.4 what size is the test port on the fuel rail? I need to know the size for the threads so I can get the fuel to my Solenoid. I found a fitting that sorta works (1/4 X 1/8 brake fitting). The 1/4 side is female but when I match it with a 1/4 coupling, the threads and size are different ??? The part is from Oreily it's an Edelman 124420. Thanks.
    MODS:<br />3.4,Crower cam, K-motion valvesprings, Heddman Longtubes, BBK AFPR, Accel Coil, 36mm/23mm Sways, Boxed LCAs/Panhard bar, Mutant Nitrous wet kit, Mr. Gasket Cutout, 10.02 1/8 mile at 67.2 mph UNTUNNED no spray

  • #2
    should be -4AN.... thats what most are I believe...

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    • #3
      You were right! I tested the main line from the bottle (which I know to be -4 AN) and it fit perfectly. What does that convert to in normal compression fitting size (I think it's 1/4"). Not 1/4" NPT, just 1/4...? I bought a fitting and it fit (the one stated above) but the collar was a bit short, so I'll have to buy a different one (and I plan on running brakeline for the fuel line, so it needs to be a double female). Thanks!
      MODS:<br />3.4,Crower cam, K-motion valvesprings, Heddman Longtubes, BBK AFPR, Accel Coil, 36mm/23mm Sways, Boxed LCAs/Panhard bar, Mutant Nitrous wet kit, Mr. Gasket Cutout, 10.02 1/8 mile at 67.2 mph UNTUNNED no spray

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      • #4
        you have to use the -AN fittings, they are a tapered thread. I would imagine a standard fitting would work, but it might leak....

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        • #5
          The threads aren't where the sealing occurs, NA fittings work on comprssion [img]smile.gif[/img] .
          MODS:<br />3.4,Crower cam, K-motion valvesprings, Heddman Longtubes, BBK AFPR, Accel Coil, 36mm/23mm Sways, Boxed LCAs/Panhard bar, Mutant Nitrous wet kit, Mr. Gasket Cutout, 10.02 1/8 mile at 67.2 mph UNTUNNED no spray

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