im look into doing a jdm h23a dohc vtec swap in my accord what would i have to do to ensure a clean swap could i use my f22 tranny since its brand new, is the wire harness interchangeable, what motor mounts would i have to change

 

Your f22 transmission will work. You will use your f22 wiring harness and modify it to work. You can either grind the passenger engine mount to work or buy a hasport one.

Swapping in a h23a is pretty much the same as swapping in a h22a just need a different ECU

 

what wires on harness have to be modified

 

Well since your car is nonvtec you would have to add vtec. If I remember correctly you would have to swap out the oil pressure switch, rewire the crank position sensor, and distributor.