All up everything to do the conversion cost me about $7000. I fitted everything myself so that doesn't include labour.I bought the TH400 with a torque power bell housing & a TCE converter from ALS RACE GLIDES. The shifter, cooler, temp gauge, lines & fittings, mount and driveshaft I got here or there. It's still an unopened BA I so I only had it tuned to 340rwkw even then I run a few psi less just to stay on the safe side. Everything on the car is overkill at this stage the auto especially the bottom end is now last on the list. There are people running BTR's with more power than mine will ever make how long they last I don't know. They're less refined but a well built C4/C10, TH400 or Power glide will handle a fair bit of power if u can live with them.