"zc" stamped on an si block

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11-28-2003, 01:43 AM

WhiteZC

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"zc" stamped on an si block

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

11-28-2003, 07:15 AM

88crxSi

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Re:"zc" stamped on an si block

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

11-28-2003, 10:15 AM

WhiteZC

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Re:"zc" stamped on an si block

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

11-28-2003, 10:26 AM

rexracer

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Re:"zc" stamped on an si block

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

11-28-2003, 11:07 AM

greddycrx

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Re:"zc" stamped on an si block

sounds like the sohc zc motor to me...

11-28-2003, 12:34 PM

WhiteZC

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Re:"zc" stamped on an si block

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?

11-28-2003, 01:10 PM

civicvtecb16a

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Re:"zc" stamped on an si block

yer, pics would be nice.

11-28-2003, 02:14 PM

pbwiz

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Re:"zc" stamped on an si block

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.

11-28-2003, 04:54 PM

HMT-Admin

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Re:"zc" stamped on an si block

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.