B series swaps into 01+ Civic's aren't too popular for a few reasons. Some of these are:
- It's not a direct swap like it was in 92-00 Civics
- Usually your motor will be much older than your car (Example: Friend with 99 Civic has a 95 B18C3 motor)
- The K series has eclipsed the B series, as far as tuner motors for new cars go. K series seemingly has more potential for power versus B.
Why don't you get a K20A2 head and a K24A2 block, and KPro, and have tons of fun.