Gas Tank Options for 1970 GS 455

Discussion in 'Chassis restoration' started by Rob Swenton, Dec 17, 2019.

  1. Rob Swenton

    Rob Swenton Well-Known Member

    I am restoring a 1970 GS 455 that was a mess of other parts from other years. I noticed this when I took it all apart. My question is that the car needs a new gas tank. I see that there are 1 vent and 3 vent options. How do I know which is correct for my car? I cannot tell from the old tank as it was already out of the car when I bought it, and I do not even know if it was the correct tank.
    OHC JOE likes this.
  2. OHC JOE


    I believe the 3 vent tank was for California emission car so in the driver side wheel well area will be a charcoal canister
  3. Brad Conley

    Brad Conley Super Moderator Staff Member

    Joe is exactly correct.
  4. Brett Slater

    Brett Slater Super Moderator Staff Member

    Here is the original tank and the parts that go with it from my '70 Stage 1.

    I dropped it back in August and replaced both the sending unit and the tank filter vent hose. I also replaced the crumbled up pad with one of Patton Glade's nicely done pieces.

    20190819_135754.jpg 20190819_155703.jpg 20190819_120311.jpg 20190819_120243.jpg 20190819_141955.jpg
    BYoung likes this.
  5. flynbuick

    flynbuick Super Moderator Staff Member

    Keep your original filler neck. You may need it for your new tank.
  6. DasRottweiler

    DasRottweiler -BuickAddict-

  7. 70 GMuscle

    70 GMuscle Plan B

    I have the oem tank in Buick w the 3 vents.
    Put one in Chevelle that had 1.
    Better system helps prevent fuel issues I believe.
  8. hugger

    hugger Well-Known Member

    The spectra premium and any quality tank will have the neck,..there are a few different manufacturers, careful some are garbage
  9. Rob Swenton

    Rob Swenton Well-Known Member

    Hugger I looked at the spectra premium tanks. One question. They have 1 or 2 vents for the tanks without EEC. I am not sure the tank I took out is the original tank so how do I know if I need 1 or 2 vents?
  10. hugger

    hugger Well-Known Member

    Two vents on pass side
  11. flh73

    flh73 Well-Known Member

    Help, Patton Glade’s fuel tank pads web site. Struck out on my search. Or where ever you order them? Thanks
  12. Brett Slater

    Brett Slater Super Moderator Staff Member

    He's pglade here on the board.
  13. pglade

    pglade Well-Known Member

    Brett Slater likes this.

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