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  1. #1

    Default 79 notch with 90 gas tank?

    Anyone have some pics of what you did to make it fit? End result pics are helpful too.

    Mainly the spare wheel area... either cutout or "gently massaged".


    Goal is a 90s drivetrain into a carbed 79.

    Thanks
    79 Notchback 2.3 cyl to 347 & t-5 swap 65K
    90 Hatch 5.0 T5 Donor for 79
    67 Fastback full resto 289 + c4
    86 GT 5.0 5-Speed T-Top - Gone
    92 5.0 Auto Hatchback - Gone
    89 5.0 5-speed Notch - Gone

  2. #2
    FEP Senior Member
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    This is a '92 tank going into an '80 chassis.

    Join The Conversation
    http://www.youtube.com/basinmotorsports

    '86 Hatchback V6 / Auto Restomod (For Sale)

  3. #3
    FEP Super Member xctasy's Avatar
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    Jun 2012
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    See http://vb.foureyedpride.com/showthre...1-tank-upgrade

    Quote Originally Posted by xctasy View Post
    Both posts outline the bigger 79-80 spare wheel well and the strap location of the early pre 1981-1/2 12 gal tanks. Some 81's have the earlier tank.

    http://vb.foureyedpride.com/showthre...tang-fuel-tank

    http://vb.foureyedpride.com/showthre...ange&p=1774393


    Best post ever.....

    Quote Originally Posted by Basin Motorsports
    Published on 15 Aug 2017
    One of the great debates and questions asked on Facebook and the car forums is what each system fuel tank looks like, what does each tank contain, and what tank will fit on each model year of Foxbody Mustang. In this video I take the 1980 2.3L 4-cylinder carburetor fuel tank apart and show what the internals look like and how they function. In the second half of the video I detail how the 5.0L 1992 fuel tank is set-up in comparison to the carburetor tank.
    Quote Originally Posted by Basin Motorsports View Post
    Before I hauled off the crashed notchback, I spent a few minutes documenting the difference in the carb vs EFI fuel tanks. I see this question pop up once and a while and hopefully it answers a few questions.



    My project this week is to get the engine bay repainted and the trunk cleaned up. I need to start mock-up of all the EFI wiring, battery relocation, etc.




  4. #4

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    Ok thanks... ill check these out.
    79 Notchback 2.3 cyl to 347 & t-5 swap 65K
    90 Hatch 5.0 T5 Donor for 79
    67 Fastback full resto 289 + c4
    86 GT 5.0 5-Speed T-Top - Gone
    92 5.0 Auto Hatchback - Gone
    89 5.0 5-speed Notch - Gone

  5. #5
    FEP Senior Member Lubner's Avatar
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    Dec 2009
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    Levittown, NY
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    I just installed EFI tank in my 81 coupe did not have to cut or bash anything just reshaped straps and longer bolts with spacers.
    Name:  Tank1.jpg
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    1979 Ghia Coupe
    5.0/C4
    Polar White
    1981 Cobra
    Gen 2 Coyote/6R80
    Bright Bittersweet
    2022 Mustang GT
    10r80 Whipple
    Eruption Green

  6. #6

  7. #7
    FEP Super Member xctasy's Avatar
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    Real Noice....nothing blind about you, 4eb. Ima tryin not to be too wordy.


    According to most posts, it is the tire well that got narrowed and deepened...Ford went to a 220 section TRX tire option, which was shallower at 630 mm rather than 637 mm like the earlier 190 section TRX tires, theSSP's used a shallower tire too....so the drivers side of the EFi tank hits the pre 1981 model year wheel well in just that one place. Based on all that...A little hammering on the tank OR spare tire well clears things.

  8. #8
    New User
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    May 2020
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    Maine (aka Canada's Florida)
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    The filler tube on my 81 notch was slightly larger in diameter than the hole on the 82 up tank. Had to use a hole saw to make it fit. Didn't have to hammer the body or tank. I welded in extensions to make the straps fit on the back side of the tank. The tank did sit lower though. It wasn't the best option, I just worked with what I had on hand at the time.

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