Wow, no offense to anyone but just about every post in this thread is wrong.
Do a little research on D-Series and you'll find the answer's to all of your questions.
http://www.d-series.org
You don't have a VTEC engine, the D15B7 is a non-VTEC engine. I wouldn't try and upgrade the internals on the D15B7, your better off selling it and buying a D16 IMHO. You'll have an easier time finding aftermarket internals.
The D15B7 and D16Z6 internals are NOT interchangeable, as thsmrtone1 said. And if you need a timing belt and/or water pump, you would order one for any 1992-1995 Honda Civic LX/DX, NOT from a VX.
The D15B7 is not 92hp, its 102hp at the crank.
If you have any other questions, feel free to PM anytime.