The reason for the swap is cus i dont have enuff acceleration and the motor has 130,000 miles on it and im not to happy driving around with a car with such high mileage even though i know civics get more then 200k. But whats the difference between a b16 with a auto and a b18b with an auto. I might go with that all i know is im getting a new engine and tranny so why not get something better then what i already got