there are lots of ups and downs for every engine. the H22 prelude engine is probably the most realistic fastest motor you can put in a civic. but the weight of it with stock suspension kills the handling. on the other hand, the B18C5 type R engine will not be as fast as the h22, but handling and quickness is great. there are lots of engines to choose from. pick your budget and destination and you will find out whats the best engine for YOU.