The H22 can be thrown in a civic. Its pretty pointless tho. Just because its a 2.2 doesnt mean your cars gonna be fast. I wanted an H22A (the JDM ONE) in my civic but the only reason i wanted the bigger engine is because the engine block is so much larger, it can handle boring more than lets say a B16, with slightly less worry about warping in extreme heat.
I think you should look at actual figures for the H22 before you go through the hassle of the swap. The hp is 200 for the US H22A. Now you can save yourself a lot of work and weight by getting the 97-00 Integra type r B18C5 engine. This puts out only 5 hp less then the H22.
Well anyways. I think...save your money and your time and just go with a B18c5. Build it up. Add a turbo. Youll be happier