*Ls an fuel line fittings*what to use*

Discussion in 'High Tech Retrofits' started by 72BIGBLOCK, Jun 28, 2016.

  1. 72BIGBLOCK

    72BIGBLOCK Veteran Member

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    Installing an fuel line fittings for the ls swap
    Should I use anything on them ?
    I know I shouldn't use Teflon tape so that's out of the question what can I use or what should I use ? A sealant? Which one ?
    The an fittings are new

    Thanks
     
  2. Goat

    Goat Veteran Member Lifetime Gold Member

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    AN fittings do not require any sealant. They are compression type fittings...
     
  3. John Wright

    John Wright Veteran Member Lifetime Gold Member

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    AN fittings use a 37° tapered seat that seals the joint, so the threads don't actually see any fluid or need any sealant(provided the joint is snug-tightened).
     
  4. badazz81z28

    badazz81z28 Veteran Member

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    If you're using hard line, take your time prepping the line and use a good flaring tool. I think loctite is the brand, but there is a sealant type liquid you can put on the sealing surfaces. It's suppose to fill in any small scratches or imperfections that would prevent a good seal
     
  5. 76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Where would he need to flare the hard line? I thought AN style fittings like this one were simple compression style sittings?
     
  6. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    These work well, I'm using them on my fuel lines.
     
  7. 72BIGBLOCK

    72BIGBLOCK Veteran Member

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    I'm using an and 3/8 225 psi fuel line rubber not metal
     
  8. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Then Goat's initial response is correct, you do not use any type of sealant on AN fittings.
     
  9. 72BIGBLOCK

    72BIGBLOCK Veteran Member

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    Got it
    Thanks everyone!!
    Hopefully this coming week we fire it up
     
    Last edited: Jun 28, 2016
  10. hot72rod

    hot72rod Veteran Member Gold Member

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    That's the same fitting I used, and as stated no flaring of the metal needed.
     

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