EEEEEHHHHHHHH!!!!!!!!!! Wrong
, sorry, just wanted to do that.
The D15B2 is out of the 4th gen DX. The D15B1 is out of the STD. The B2 has 92 hp, while the B1 has 70 something. Here is a link with a bunch of engine codes on it. Well here are 2, ami's site has a bunch of engine codes on it also.
www.4thgenerationcivic.com
www.geocities.com/hondaenthusiasts/