A body Torsion Bars

This is what I was using as a reference:

.850″ 110 lb/in 2535890 / 2535891 slant six w/air conditioning, 318 w/o air
Idk about that but I have had 5 a bodies barracudas 2 were /6 and the others were v8 and i checked the bars and they were different sizes