With the ZC engine could I put on a D16 SOHC vtec head? I was told by the person and confirmed by another person who has nothing to do with the sale that this was in fact a Civic SI Head. I read that the 95 SI's were sohc, its hard just starting into Honda Tuning, so any info you could give would be greatly appreciated. How can I tell if it is this head or just the ZC head? If it is just the ZC head and I can put on the SI Head to make it vtec what else would I need other then the Head itself and the ECU?