1960 Valiant- road race torsion bars

I believe the 1960 Valiant that I am prepping for street and road race time trial car.
I believe it has 36” torsion bars where the “A body” is 37.5”.
Can someone confirm I’m correct?
Does anyone know where to get heavy duty torsion bar (1”+) for the 1960 valiant?
Can the A body torsion bars be shortened and still function? (Remove 3/4” from each hex)