some H22 reading on the EK Civic if u are interested....
http://forums.hybridgarage.com/showt...ear&Main=89089
Deciding on what engine to install is really on what comprimises u are willing to give up. The H22a is hands down the fastests swap u can do (excluding the K series), when comparing stock engines. Unfortunately the oil pan sits very low, a good amount of modification to the chassis as well as wiring, custom axles, very expensive, and AC will be a trick to mount (depending on mounts of course). Other disadvantages is cable trannies suck. They are not as positive notchy feeling as a linkage type tranny, as well as they have a very long throw. Its one of those things u have to get used to. Maintenance is a biatch. U cannot pull the tranny off the engine in the car!! The timing belt can be done in the car (very, very, hard, might be easier to pull the engine). On my EK with Hasport axles u cannot pull the intake manifold off without pulling the engine and tranny (I might be able too if I top half the manifold, going to try here shortly). The H22 swap is not for the weak at heart. I decided that the advantage of speed far outweighs any negative aspects that I have, and I am happy with the car so far.
Obviously the B series is a very easy swap (uses all honda mounts and axles), no modification to the chassis and gives up the fewest comprimises. The only real comprimise that u would be giving up is power on a B series. My H22 hatch pulls on ITR's like they are going out of style, and murders SRT-4 neons out of the hole and down the strip. So really the choice is yours here.