swapping in a b18b on my 98 civic, what would i need to make this swap easy as possible?? also i want to keep my a/c would the civic lines work? i checked the hmotors site and it said COMPLETE CHANGEOVER so im guessing it has everything i need in there. but can i use my existing engine harness for this swap?? thanks

If the motor is vtec you will need to do some wiring. search on google there are hundreds of write ups. try Honda-tech.com