1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Fuel line size

Discussion in 'Builds and Fabricators Forum' started by Uncle Jeep, Nov 7, 2015.

  1. Nov 7, 2015
    Uncle Jeep

    Uncle Jeep Snow in the desert??

    No longer in NM!!!
    Joined:
    Feb 20, 2004
    Messages:
    37
    Ok, I'm trying to replumb my 3b. The previous owner had all kinds of Frankenstein line of various sizes and compositions. Heck, he had part of the rubber line touching the exhaust! Anyways, it has a stock ford 302 in it with a stock 2 bbl carb. It has an Autozone electric fuel pump (1.5 to 4 psi) and an aftermarket plastic under seat tank waiting for installation. I'm kinda leaning towards using 1/4" hardline for the majority but it it too big or too small for this?
     
  2. Nov 7, 2015
    47v6

    47v6 junk wrecker! 2020 Sponsor

    Washington DC.
    Joined:
    Oct 25, 2006
    Messages:
    4,833
    i have been told 5/16 is the size for fuel supply. Thats what I plan on using.
     
  3. Nov 7, 2015
    Fly Navy

    Fly Navy Member

    Emerson, IA
    Joined:
    Jun 6, 2014
    Messages:
    333
    Low horsepower small block fords and chevy's usually used 5/16" fuel line from the factory. Big Blocks and higher horse small blocks use 3/8" fuel line.
     
  4. Nov 8, 2015
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    21,096
    Pretty sure Jeep used 1/4" line for these Jeeps, but IMO that's too small for that engine. Go with 5/16".
     
  5. Nov 8, 2015
    Uncle Jeep

    Uncle Jeep Snow in the desert??

    No longer in NM!!!
    Joined:
    Feb 20, 2004
    Messages:
    37
    5/16 it is then. Thanks for the input guys.
     
  6. Nov 8, 2015
    Johns1967CJ5

    Johns1967CJ5 Sponsor

    Northern NJ
    Joined:
    Dec 5, 2013
    Messages:
    1,628
    One line was 5/16" and one was 1/4"
     

Share This Page

New Posts