fuel line size

Discussion in 'The Bench' started by Gold GS, Nov 12, 2019.

  1. Gold GS

    Gold GS Well-Known Member

    Hello Everyone, I'm going to upgrade my fuel lines and replace the sending unit on my 1972 GS 350. I would like to get the 3/8" feed line with a 1/4" return line (like the 455 has). Does anyone know if the 350 with A/C and duel lines are the same size as the ones on the 455? All of my parts catalogs list them together and I can't look at mine, for my car is in the shop.
     
    Last edited: Nov 12, 2019
  2. Freakazoid

    Freakazoid Gold Level Contributor

    Look at the stainless and other replacements offered by Inline Tube. Or other repo company's. Bet they offer one size for your year. I think 71 is 3/8" feed and 5/16" return...
     
  3. Gold GS

    Gold GS Well-Known Member

    Thank you Freakazoid, I'll check Inline Tube website.
     
  4. bostoncat68

    bostoncat68 Platinum Level Contributor

    On the full size it's 3/8 and 1/4... I decided to use copper nickel instead of pre formed stainless. It was a touch cheaper but I mostly appreciated that it was easier to install with the same rust free benefits. Got it from stop shop on amazon along with stainless gravel guard. Did rear brake line at same time.
     
  5. Canadian GS 350

    Canadian GS 350 Well-Known Member

    My car is the same - gs350 with auto and air.......already has the 3/8 feed, 1/4 return. Same size as my big block 442.....so assume same lines as the gs455
     
  6. Gold GS

    Gold GS Well-Known Member

    Thank you bostoncat68 and Canadian GS 350. Glad to hear my car does have the 3/8 and 1/4 lines. That will save me some time and money. I really appreciate your help.
     
  7. Freakazoid

    Freakazoid Gold Level Contributor

    So is the return on the website 1/4" or 5/16 ? I could been thinking of the vent line?
     
  8. Gold GS

    Gold GS Well-Known Member

    Inline tube list a 1/4" return line and a 5/16" emission line.
     
  9. Freakazoid

    Freakazoid Gold Level Contributor

    Well there ya go, almost had it.
     
  10. bostoncat68

    bostoncat68 Platinum Level Contributor

    Not trying to spend your money @Gold GS but I would do the brake line at the same time. It's all on the same clips and if one is rusty the other can't be wonderful. My rear line is 1/4.
     
  11. Gold GS

    Gold GS Well-Known Member

    That's a good idea. I had my car converted to four wheel disc brakes but I don't remember if the brake lines were replaced. When I get my car back home I'll have to check it out. Thanks again bostoncat68
     

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