The manifolds did fit very well and look beautiful. I'm very happy with them. I didn't get my H pipe from Accurate as shipping was to expensive i'm too far away. My H pipe had the same problem with hitting the torsion bar. I checked those measurments you mentioned and motor is sitting fine. Don't know who actually made my H pipe but it was no big deal to spread it open a bit and heat and notch at torsion bar. It just barely hit but would have been a nasty rattle if not fixed.