A body torsion bar

[dard2653]

On a 65 A body do the six cylinder and a V8 use the same torsion bar?

 

[Dartsun]

V8 cars have bigger bars

 

[TrailBeast]

V8 cars have bigger bars

Yep, unless someone messed with them already.

 

[Daves69]

Per MP, the production A-body bars incremented in .020" diameter graduations. Length and hex all the same.
.830"
.850"
.870"
.890"

My 383 car has the .890" bars.