I've been taking some notes on a swap, because I eventually want to do this swap and I'm going to buy the engine soonish.

I'll post what I've got so far, and then follow up with some questions. Besides just answering questions, feel free to correct any of my notes if you know for sure that something is wrong.

New engine (H22a4 OBD2); Previous Engine (F23)

Mounts - All Accord mounts can be used (manual transmission) with slight modification to bring the drivers side mount out a little bit.

A/C - Accord A/C direct bolt on.

Power Steering - Slight modification to make power steering line from prelude fit inlet on Accord.

Wiring - F23 EGR on H22; Manual tranny vehicles, plug and play (Some wires may need to be extended).

Axles - All Accord axles can be used.

ECU - OBD2 P13 or P5M ECU direct plug and play.

My first question has to do with the ECU. The H22a4 is indeed OBD2 right? Since it's from the 5th gen prelude. Also, the OBD2 P13 or P5M really will work right?

Also, whether the Accord is a coupe or sedan does not matter I assume?

 

Yes the 5th gen Prelude (97-01) would be OBD-II.

 

Thanks. My friend was telling me last night that the people he knows at the local used honda dealership can get me a DOHC F20B (without tranny) for $550 with between 40-60K miles. That's a lot cheaper than I could get an H22a4 and with approximately the same horsepower. He said my 5 speed should bolt right up and for the most part it should be a drop in. I'm looking into that now simply because of the price.