turkey rather make passing comment than answer the question
ITR head, is not the same as a B16 head. Cams, valves, valve springs, retainers, combustion chamber (pretty sure the B18 head doesn;t have the triangular bits on the head between cylinders for higher compression).. etc are all different.
I think the rockers are the same.
using this link, it shows that the b15a and b18c5 heads both have the exact same compression ratio on a given head......obviously dont take this as gospel....but it gives you an indication that they are VERY similar...
...and NO....that site wasnt my inspiration in thinking they were soo similar :P
_________________________________________ FOR SALE: '98 EK CIVIC VTi-R
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Let's get complicated - do all all 3 versions of the B18C - type R variant have the same head - The JDM has a higher compression ratio due to pistons, BUT....
They may be simillar, but i still think the B18 head is different. As I said, please prove me wrong, kinda imteresting....
The head on a B18C VtiR is more commonly known as a GSR head they use a raised intake port for better flow. The DC2R head is a B16A based head which has a hand finished porting and not just a rough casting.
regards Dyno Dave
Buddyclub Australia Member of Master Of Vtec Group
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