Torsion bar diameter for 440 swap

Suspension, Steering and Chassis

  1. Charlie Jourdain

    Charlie Jourdain Member

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    what diameter torsion bar is used on 383 or 440 1967 Barracuda?
     
  2. BigBlockMopar

    BigBlockMopar BigBlockMember

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    Originally, still a wimpy one in today's standards.
    Use at least a 1.03" bar.
     
  3. moparmat2000

    moparmat2000 FABO Gold Member FABO Gold Member

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    Better off building a stroker small block. Fits better packaging wise, lighter weight, unless WoW factor is what your after.
     
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    • halifaxhops

      halifaxhops It's going to get stupid around here! FABO Gold Member

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      I use ST .103 work great if you go BB
       
    • 383Scampman

      383Scampman Well-Known Member

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      .094" is oem
       
    • 69hemibeep

      69hemibeep Well-Known Member

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      I used a 1.03 in my Valiant, a big sway bar moved the battery to the trunk and used as many aluminum parts on the engine I could and it handles quite well on the road. Never tried auto crossing it though.
       
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      • abodyjoe

        abodyjoe Well-Known Member

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        Is it a track car or street car?

        Street car use 1" minimum

        Track car then the smallest you can find
         
      • abdywgn

        abdywgn dismantler

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        had 340 bars in mine.worked great for around town driving and the track.
         
      • AJ/FormS

        AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s

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        My 1.03 bars have never given me the impression that they were too big,(or have they,see below).
        My SBM 68Barracuda scaled at;............. 1750/1717r=3467 total,
        with me in it, in track trim, with 200pounds removed.
        Here's what I took out;
        Exhaust; 3"TTI/Dynomaxers(72), rear seat(64), heater(16),.....total 152pounds
        front bumper(30), sway bar and skidplate(18),.........................total 48pounds
        As you can see only the 48# came directly off the front, the rest is between the wheels, with about 100 of it right in front of the rear wheels.
        If I had to guess, in street trim;...............1850/1817r=3667
        but the rear seat never went back in, so... 1850/1753r=3603...That was 2004, and since then I
        have gained 25 pounds, so guessing now; 1868/1760r=3628

        But; I gotta tell ya that at my slightly lowered rideheight, there is very very little preload on those PST bars. So little, that sometimes I am cornering on the poly bumpstops. And when I hit certain speedbumps in my town,, POW! the bumpstops jackhammer the front straight up.So in that light, I think I could run LESS bar, and more rideheight, and let the shocks handle it.
        but no way am I gonna do that,lol. I just slow down for those, or lower the tire pressure on Friday afternoon, cuz, you know, I love to smash those speed bumps when passing the tuner boys crabbing over them while holding up traffic to do it. BadaBOOM! Ya ok, so that might be dickish, and I know it, so whenever I do it, I lay on the gaspedal too; why be a half-dick, when you can be all-dick. I my defense, they all know me.
         
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        • PST

          PST Marketing Manager FABO Vendor

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        • Jim Lusk

          Jim Lusk Well-Known Member

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          OEM is .890" for big block A-bodies. We have two sets. I would like to go a little bigger, but I'm not going to spend any money to get there. I've been happy with the set that my son has in his '67 Dart (440/4sp convertible). Shocks are nothing special, but the car also has a factory big block sway bar. I'd like to have some .920" or .990" and use the .890"s in the 340 car instead of the .870"s.
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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          James, do the 1.03 bars not fit the early A bodies? When I go to choose them for my 64 Valiant, it says "does not fit"
           
        • abodyjoe

          abodyjoe Well-Known Member

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          i know 1" fit early abodies. 1.03 should fit.
           
        • PST

          PST Marketing Manager FABO Vendor

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          Yes they fit A Bodies 1962-76. I will make the correct on our website ASAP.

          Thanks
          James From
          PST
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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          Thanks James! I thought that was right, but then, I'm wrong on a regular basis so who knows? I'll be getting a set before long for my 64.
           
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