You can buy bigger bars if needed. I would gusset the torsion bar frame stubs that are left, if you aren't going to tie the torsion bar cross member back together. With the motor scooted back, you may not have room to tie it back together. As long as the remaining sections of the torsion bar x member won't twist, they will be fine. It'd be hell to come down from a hard wheels up launch....and the drivers side torsion bar jab you in the back of your left leg!