I have a pair of front torsion bars from a SWB (1965-1968 911 & 912) car. They are 18mm which is the same size as used on 914-6. They only fit to 911 or 914-6 A arms using 911 splined adjusters. Later 911 used 19mm torsion bars. They can be identified as from a SWB car bar the raised markings on the ends.
The bars were hand polished and powder coated satin black. There were no wear marks on the bars.
These bars are NLA and Porsche superceeds them to the later larger (+1mm) bars. These are the correct size bars for a correct restoration.
$200.
Domestic shipping cost $20 or local pickup in Riverside CA.