s6 to V-8 do I need to change torsion bars

thanks guys I plan on getting the PST torsion bars at a later date. this is my first "full" restore. this one will be a rotisserie. planning on a 360 C.I. 4 spd 8.75 rear. currently in the stripping stage. money is somewhat of a concern but probably a 5 year target for completion.

I find you guys plenty helpful in all the forums. glad I signed up
again thanks