hey whats up guys, im new to all this honda stuff, and i had one question. i have a 90 si, and when i look on the block of the motor, it has "zc" stamped on it. i dont know if thats right, so i was wonderign if you could tell me whats going on with that. thanks guys

 

sounds like you may have a SOHC ZC block w/ a 90 si head.

 

so it would almost be like a "mini-frankinstein" motor? isnt a real frankenstein a gsr block with a b16 head on it?

 

NO, LS block with GSR head. Mini me is a non vtec d block with a Z6 or Y8 head

actually it only has to be a LS block w/ a vtec head. and a gsr head would be my last choice, damn butterfly valves. :P

 

i doubt its a sohc zc motor, my buddy is a honda tech and without knowing about the stamping, he assumes its an si motor...i can take a pic of the motor and stamping if you'd like me to?

 

yer, pics would be nice.

 

I'll toss in my vote for single cam zc as well. A kid down the road from me has one in his hatch, and with the si intake manifold it looks exactly like an a6.

 

If the code says "ZC" and its a SOHC D-series, its a SOHC ZC period. JDM never used the D16a6 code on their engines. Its not a rare engine, its nearly identicle to a USDM D16a6. I beleive the main differences were Cam indexing & ECU.

 

correct again abaz I have owned both motors a6 and sohc zc and now i have a dohc zc lol.

Jeff is a wise man