Look at this link, it will answer all of your D15B questions. The 130 HP D15B is basically a Civic VX block with a D16Z6 head.

here:

http://asia.vtec.net/article/d15b/



Just get a D16Z6. I bought a brand new D16Z6 short block for my hatch for $390.00 on ebay last year. Then I had an old D16Z6 head rebuilt for $130.00. So basically I got a brand new D16Z6 for less than $600.00.