Torsion Bars

I am a bit confused on if Hemi cars had larger torsion bars. I been reading things and from my understanding the a base Roadrunner came standard with heavy front suspension. Is this the same as if a hemi was ordered? Or was there an even larger bar? Any help would be great.

Hi Jason,

My notes indicate the B-body Hemi torsion bars were left #781 & right #780 bars with diameter of .92 inches.

The base Roadrunner w/ 383 used HD bars left #779 & right #778 bars w/ diameter of .90 inches

In my parts book, the 780 & 781 bars are listed under Heavy Duty section and are specified for all 440, 426 applications and also under "extreme Duty" applications.

The 778 & 779 bars are listed also under Heavy Duty for all applications except 440 and 426 engines.

Hope this helps.

Mike Mancini

Quote:

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Hi Jason,

My notes indicate the B-body Hemi torsion bars were left #781 & right #780 bars with diameter of .92 inches.

The base Roadrunner w/ 383 used HD bars left #779 & right #778 bars w/ diameter of .90 inches

In my parts book, the 780 & 781 bars are listed under Heavy Duty section and are specified for all 440, 426 applications and also under "extreme Duty" applications.

The 778 & 779 bars are listed also under Heavy Duty for all applications except 440 and 426 engines.

Hope this helps.

Mike Mancini

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Plus 383 B and E cars automatically came with the 440/Hemi suspension (Xtra heavy duty) if they were equipped with an axel package like A31, w/3.91 gear or A36, w/3.55 gear ratio.

Mark