Mopar Torsion bar length chart

Vehicle, Length, Diameter, Rate, Part no., Mopar adv. application
A-body, 35.8″, 0.810″, 90, P5249148, Drag Racing
A-body, 35.8″, 0.830″, 100, N/A, 6-cyl. Production bar
A-body 340, 35.8″, 0.870″, 120, P5249149, Resto 340
A-body 383, 35.8″, 0.890″, 130, P5249150, Resto 383
A-body, 35.8″, 0.920″, 150, P5249151, HD V8; Handling Std. Solo
A-body, 35.8″, 0.990″, 200, P5249152, Solo and Road Racing
A-body, 35.8″, 1.040″, 250, P5249153, HD Solo and Road racing; Oval Track Racing
A-body, 35.8″, 1.080″, 300, P5249154, Oval Track 1/4 and 1/2 Mile racing (Optional)
A-body, 35.8″, 1.140″, 350, P5248155, Oval Track 1/4 and 1/2 Mile racing
B/E body, 41″, 0.840″, 80, P5249156, Drag Racing
B/E body, 41″, 0.860″, 90, N/A, 6-cyl production bar
B/E body, 41″, 0.920″, 115, P5249157, Resto 440/Hemi
B/E body, 41″, 0.960″, 135, P5249158, HD V8 Handling
B/E body, 41″, 1.000″, 160, P5249159, Solo and Road Racing
B/E body, 41″, 1.120″, 250, P5249160, HD Solo and Road Racing; Oval Track 1/4 and 1/2 Mile Racing
B/E body, 41″, 1.160″, 300, P5249161, Oval Track 1/4 and 1/2 Mile Racing (Optional Std. and Racing)
B/E body, 41″, 1.220″, 350, P5249162, HD Oval Track 1/4 and 1/2 Mile Racing; Std.

Personal note;
Above table is based on roughly 30 year old information, which was considered on par with the times.
But, in my opinion, these days, normal “modern day” streethandling make torsion bar rates of 200+ pretty much the ‘default’ application for V8 powered A-B-E body Mopars.
Improved shock technology, needed with thicker torsion bars, upgrade the handling of a ’60s/’70s Mopar greatly.

Mopar Torsion Bars 1969 Dodge Dart Dodge Demon Plymouth Roadrunner Dodge Challenger Dodge Challenger Plymouth cuda Plymouth Cuda Plymouth Valiant Dodge Challenger