diffrence between ZCengine and B18b engine

IM NEW TO THE FORUM( WEB-SITE)
TRYING TO ATHER SOME INFO BOUT zc ngine and b18b DA engine
its diffences

now im trying to swap an engine for my 89 HATCH
i see the zc engine alot in hatches but they look so much like the integra b18b engine,
whats the diffrence?
i know that ther is a ZC DOCH AND A ZC SOCH
IF COMPARE WITH THE stock, civic soch engine looks really alike
other then the mpfi.
i know is non vtec and i know it has 130 hp
diffence in parts or performance between usdm engins and ZC.?

may sound dumb but zc engine parts will be the same as the b18b?
like if i needed to change the timing belt will it be a perfect match?
just thinks liek that i would like to know before i procced with the purchase of a zc1 engine thanks
http://www.fastjapanese.com/images/Integra%2094-95%20B18B.jpg
thats the DA90-93 ENGINE

AND THIS IS THE ZC ENGINE THANX GUYS
http://www.sunrisejdmmotors.com/db/images/honda9.jpg

The b18b and the dohc zc are nothing alike. The ZC is the jdm version of the '88-'89 D16A1 Integra engine. Here's a site to find some more info on ZC parts: http://thenew.gamesbbs.com/~dmoore/zc.htm#ZC%20Parts%20List Scroll up & down for more various info.