I have a 98 Prelude (Base) with a H22A4, automatic. The motor is shot due to it blew a rod and the block cracked. I located a used motor from usedjapanmotor.com. The motor is coming from Japan and I was wondering what if any modification will be needed to install? Also I know there emissions are different than ours will I need to transfer parts from old motor to new used one? thanks

 

What year is the H22 you bought?

 

The FAQ has info on this. Here's some threads that will help.

https://honda-tech.com/zerothread?id=1053816
https://honda-tech.com/zerothread/2084037

There's probably more, so after these threads, check the FAQ to see if there's anything else that sounds like it might be relevant to your situation.

Good luck