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Hot Rods Fuel filter 3/8 flare

Discussion in 'The Hokey Ass Message Board' started by dogwalkin, Jul 2, 2023.

  1. dogwalkin
    Joined: Jan 17, 2013
    Posts: 181

    dogwalkin
    Member
    from tn

    Quick question. Does anyone here know if a fuel filter exist that is 3/8 female flare on both the inlet and outlet. I was wanting to run a hard line from my mechanical fuel pump to the carb and thought this would be better than having a little rubber hose and clamps in the middle. Thanks
     
    saltflats likes this.
  2. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 6,062

    2OLD2FAST
    Member
    from illinois

  3. dogwalkin
    Joined: Jan 17, 2013
    Posts: 181

    dogwalkin
    Member
    from tn

    Thanks. I'm gonna check on that one tomorrow. All the descriptions I find show it having metric threads. I'll let you know what I find.
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 59,928

    squirrel
    Member

    I think they're all metric, designed for older EFI systems.

    you can get a reproduction filter for a late 60s Corvette or SS396 Chevelle that has 3/8 flare in and out, but it also has a 1/4" ****** for a rubber hose to connect to the return line. Pricy.

    for example:

    https://chevelle.com/1969-big-block-fuel-filter/
     
    saltflats likes this.
  5. s55mercury66
    Joined: Jul 6, 2009
    Posts: 4,367

    s55mercury66
    Member
    from SW Wyoming

    You may be able to use metric tube nuts on your hard line, a 3/8" steel line will fit in a 10mm hole.
     
    SS327 likes this.
  6. Bob Lowry
    Joined: Jan 19, 2020
    Posts: 1,603

    Bob Lowry

    GF90 for Corvettes and L79 sbc .... Similar at O'Reilly are around $30, half of other suppliers..

    upload_2023-7-2_22-31-34.png
     
    Just Gary likes this.
  7. rusty valley
    Joined: Oct 25, 2014
    Posts: 4,325

    rusty valley
    Member

    On my avatar, I put a spin on filter in the line from the tank about mid way. Its a small unit from mercruser boat stuff, filter and mount is about the same height as the 34 rail. Cheap, easy, and effective
     
    2Blue2 likes this.
  8. SS327
    Joined: Sep 11, 2017
    Posts: 3,882

    SS327

    Where did you get it, got pictures, and how much did it cost? The metric nuts on 3/8” tube works great.
     
    Tman likes this.
  9. dogwalkin
    Joined: Jan 17, 2013
    Posts: 181

    dogwalkin
    Member
    from tn

    Thanks everyone. I think that gf90 may be a winner. It's 1/8 npt so I can add a adapter to each side and make that work. Thanks again.
     
  10. 4wd1936
    Joined: Mar 16, 2009
    Posts: 1,317

    4wd1936
    Member
    from NY

    How about installing the filter on the inlet side where it is under vacuum rather than pressure, less likely to have a leak in my opinion. Two good spots are at the outlet of the tank or the inlet of the fuel pump.
     
  11. Bob Lowry
    Joined: Jan 19, 2020
    Posts: 1,603

    Bob Lowry

    You can buy all the correct fuel lines as a kit...here is a picture..very easy to
    make your own and a lot less money...

    upload_2023-7-3_6-20-10.png
     
  12. Bob Lowry
    Joined: Jan 19, 2020
    Posts: 1,603

    Bob Lowry

  13. dogwalkin
    Joined: Jan 17, 2013
    Posts: 181

    dogwalkin
    Member
    from tn

    Well.... that would work if that was the application I was using it in but...
    It's going on a pontiac v8 in my 50 chieftan. But hey it should give me 30-40 more horsepower since it's a vette part. :D
     
    2OLD2FAST and Bob Lowry like this.
  14. rusty valley
    Joined: Oct 25, 2014
    Posts: 4,325

    rusty valley
    Member

    @SS327 , I bought the Mercruser filter base on ebay, forget how much. Bobcat skid steers have a small spin on filter too. Between the tank and pump protects the valves in the pump also
     
    SS327 likes this.
  15. 05snopro440
    Joined: Mar 15, 2011
    Posts: 2,995

    05snopro440
    Member

    Common practice is filter after pump for mechanical fuel pumps and before the pump for electric pumps. In both cases, it's about what is best for prolonged operation of the pump.
     
    dogwalkin likes this.

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