Results 1 to 7 of 7

Thread: Need a 3/8 supply line in my fuel tank sending unit

  1. #1
    Aspen and Volare Junior Member mopar4ever's Avatar
    Join Date
    Feb 2016
    Country:
    United States
    Posts
    3
    Thanks
    2
    Thanked 0 Times in 0 Posts

    Need a 3/8 supply line in my fuel tank sending unit

    I have a 79 Volare with a 451-stroker motor in it. I find the car leaning out and loosing power on the top end of the drag strip. So I am changing the fuel supply line over to 3/8 from 5/16. The problem I am running into is finding a fuel tank sending unit with a 3/8 supply line, every one I am finding is 5/16. Is there another sending unit that will fit the tank or do I have to try to change the line out of my sending unit to make it 3/8?

  2. #2
    Aspen and Volare Senior Member 76sassygrassVolare's Avatar
    Join Date
    Nov 2015
    Location
    Peterborough, ON.
    Country:
    Canada
    Posts
    286
    Thanks
    52
    Thanked 27 Times in 23 Posts
    that's a bit of a predicament. May have to figure out a way to grind the 5/16 tube off and weld a 3/8" tube to it? I don't think there was ever a sending unit made for F bodies w a 3/8 line, even aftermarket. most running 3/8 line prob running fuel cell and racing units/ pumps/ lines. If you come up with something let us know as there are probably others wanting to run oem sending unit/tank and 3/8 line

  3. #3
    Aspen and Volare Administrator White Aspen R/T's Avatar
    Join Date
    Oct 2015
    Location
    Tomball, TX
    Country:
    United States
    Posts
    2,308
    Thanks
    195
    Thanked 170 Times in 141 Posts
    Blog Entries
    6
    Quote Originally Posted by 76sassygrassVolare View Post
    that's a bit of a predicament. May have to figure out a way to grind the 5/16 tube off and weld a 3/8" tube to it? I don't think there was ever a sending unit made for F bodies w a 3/8 line, even aftermarket. most running 3/8 line prob running fuel cell and racing units/ pumps/ lines. If you come up with something let us know as there are probably others wanting to run oem sending unit/tank and 3/8 line
    X2
    AspenandVolare Administrator

  4. #4
    Aspen and Volare Junior Member Mopar guy's Avatar
    Join Date
    Mar 2016
    Location
    St. Louis, Mo.
    Country:
    United States
    Posts
    5
    Thanks
    0
    Thanked 2 Times in 1 Post
    I have a 81 Cordoba with a 502 stroker in it & had the same problem. I put a sump on my tank & ran 3/8 line up to the pump, I have a Carter high volume mechanical fuel pump. I blocked off the 5/16 line at the sending unit & removed the rest, the sending unit still functions properly. I have pictures in the gallery if you want to check it out. No problems & the car runs great.

  5. The Following 2 Users Say Thank You to Mopar guy For This Useful Post:

    76sassygrassVolare (04-05-2016), White Aspen R/T (04-05-2016)

  6. #5
    Aspen and Volare Senior Member 76sassygrassVolare's Avatar
    Join Date
    Nov 2015
    Location
    Peterborough, ON.
    Country:
    Canada
    Posts
    286
    Thanks
    52
    Thanked 27 Times in 23 Posts
    Quote Originally Posted by Mopar guy View Post
    I have a 81 Cordoba with a 502 stroker in it & had the same problem. I put a sump on my tank & ran 3/8 line up to the pump, I have a Carter high volume mechanical fuel pump. I blocked off the 5/16 line at the sending unit & removed the rest, the sending unit still functions properly. I have pictures in the gallery if you want to check it out. No problems & the car runs great.
    Great tip! Thanks Mopar guy ! I was not sure what that was in the pic, thanks for clarifying makes perfect sense now.

  7. The Following User Says Thank You to 76sassygrassVolare For This Useful Post:

    mopar4ever (04-06-2016)

  8. #6
    Aspen and Volare Junior Member mopar4ever's Avatar
    Join Date
    Feb 2016
    Country:
    United States
    Posts
    3
    Thanks
    2
    Thanked 0 Times in 0 Posts
    Thanks, I guess first I will try and replace the stock pick up tube with one I make out of 3/8 tube. If that does not work I guess I will have to do the Sump on the bottom of the tank.

  9. #7
    Aspen and Volare Member Badvert65's Avatar
    Join Date
    Oct 2015
    Country:
    United States
    Posts
    56
    Thanks
    1
    Thanked 11 Times in 7 Posts
    Quote Originally Posted by mopar4ever View Post
    Thanks, I guess first I will try and replace the stock pick up tube with one I make out of 3/8 tube. If that does not work I guess I will have to do the Sump on the bottom of the tank.
    It isn't as difficult as you might think. The hardest part is keeping the fuel level sender functional. I made a 1/2 inch pickup for a 65 Fury. I extended the tube farther towards the rear of the tank (for drag racing) and even found a screen to put on the end.

  10. The Following User Says Thank You to Badvert65 For This Useful Post:

    mopar4ever (04-06-2016)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •