If your swapping in all that why not go with the TH400 or a 700R4. The TH400 is stronger than a TH350. The 350 however has a higher 1st gear ratio. It depends on what your goal is for the vehicle- ie Daily Driver, street rod or a worker. For a daily driver go with a 700R4, street rod or worker go with the TH400. I have run all three and the 400 is best for strength and dependability.
