zc help needed

I am a dsmer but need help from u honda/acura guys. My Q is...my friend has 91 crx. We were told by the seller that the engine was swapped from an integra (older ones,from 89-93) and the engine code on there says ZC with nothin else after it. We realy need to get working on this engine and we do not know what parts to buy. I have searched alot and have found out that the 89 integras have a zc engine but then when i search for parts there aernt realy alot. So i was wondering if 90 integra aftermarket parts would fit this zc. Also the valve cover looks like a mixture between an 89 and a 90-91. Also did the ZC come in any 90s integras. Besides the b18b. thanx for ur help.

i'm not quite sure what ZC actually stands for, but i did find this it is the ZC JDM equivalent of D16A1 130ps. and ratings: D16A1 1.6 L DOHC 86-89 Integra, 86/87 113hp, 88/89 118hp. this is the web site that i found it on.http://www.superhonda.com/tech/honda_engine_codes.html
hope this helps. i keep noticing that ZC is the JDM version only not the USDM versions. looks like you have a true jap only engine.