Honestly, if you want to build a reliable street car, or a car that will "feel solid in the twisties", I would not swap an H series into a Civic. The H22 sits further forward becuase it's simply a larger engine, and would not clear fit in the engine bay unless it's shifter forward. I believe you use the H series axles, but don't quote me on that. You have to convert to the H series cable shift linkage. HCP and HASport make mount kits.