So I bought my first car a while ago, It's a 1991 Honda Civic Si, mods done were coilovers, and tires, as well as a short throw shifter. The motor in it was a blown ZC, with ZC tranny, so the tranny is still ok, so I think im good as far as the transmission goes, but I need to look at new motors to put in. Ive done loads and loads of research, but cant decide.I;ve sat on the car for way too long, and now im a month from my birthday, where I will take my learners test, so I'd like to have it running as soon as possible, so i figure its time to ask for some help, and see if i can get a motor in there. the apparent best option out, is a K series, but that is rediculously out of the price range, then next is B series, but the mounts make that too much money and work as well, especially for my first car, which I would just like to keep simple, naturally aspirated, but quick enough to enjoy, so ive narrowed it down to the motors that will drop in. ive looked at putting in a super common D16 and ive looked at another ZC which would work nice because thats what the previous motor was, so it would save me loads of work, and a ZC is a pretty cool motor, alot of bang for the buck, but ive learned that there isnt alot of market support for the ZC, which will make it difficult for me to do the mods I plan to do later on, basically just intake, intake manifold, headers, downpipe, exhaust system, piggyback ECU , ignition cutoff, you know the affordable simple stuff. I doubt I will go turbo will this car. too much work and power for my first. so as far as the ZC goes, a fair bit nicer up front, DOHC instead of SOHC among other nice things about the ZC, but in the long run would I be better off to go with the D16, and be able to find parts for it? Thanks in advance.