6th gen Automatic accord with ANY H series obd1 motor will be close to impossible to make work smoothly, believe me, I had an h22 with the MP1A auto LSD tranny in a 2000 accord. It took approx 7 months to get the car to shift out decent enough to drive, not even mentioning smooth. The auto obd2-obd1 harness is a absolute joke, you will end up pulling schematics from multiple sources just to get the ECU to work semi-properly and the TCU to even read the automatic trannys shift solenoids. Be prepared to spent lots of time re-routing wires and tracing sensors because unless the mechanic you have, has done "this" specific swap before, he will be at a complete standstill as soon as the physical labor is done, trust me. There are so many points I can bring up about that specific setup that we'd be here all month talking lol. And if your pockets aren't deep, then don't swap at all, because if you aren't prepared to spent at least 3k, stop now before you get in too deep that your wallet can't bail you out. If you want an H-series motor, swap to manual simultaneously and save yourself the headache of "trying" to make a obd1 motor work with auto tranny. I've learned my lesson and have made the transition to manual, but could've saved myself at least $2300 if I had did it in the first place. Its your choice