The B16B is Specific simply because it doesn't use the conventional B16 base stop. Rather, it takes advantage of a de-stroked B18 bottom stop which provides it another rod size and crankshaft toss. The B16B can be the most popular, outputting 187 horsepower. It was only available during the 1997 – 2000 (EK) Civic Type R.Ryan Sage discusses System