Another way to install torsion bars from a 911, Has anyone converted the 914 control arms ? Options

[Miguel K R]

I bought a pair of 911 front torsion bars and the adjusters.
I know that most people replace the 914 control arms by a pair from a 911 in order to have the splines required by the 911 bars.
As I am in Portugal (Europe) it is a lot more difficult to find used 911 control arms, so I had the idea of converting the 914 arms to the 911 spline pattern.
Has anyone done that, and are some photos or advice available ?
I have access to a wire EDM machine so it will be easy to obtain two pieces with the 911 splines, to weld to the arms.
And does anyone have a drawing of the 911 splines ?

[Steve]

For a street car the 911 “A” arms with stock 18.8mm torsion bars is a nice upgrade over 914-4 stock 17.8mm torsion bars. Otherwise the next upgrade for 914-4 “A” arms is 21mm. I also went the Dansk route to get 911 “A” arms and used stock 911 torsion bars. I also have early boge 3.5” 911 struts.