If it was up to me, I would go ZC because a DOHC engine looks meaner then a SOHC:chuckles:

But really, I would stick with the DOHC ZC engine for all the classic reasons that 2 is better then 1 in this case. Of course, this is assuming you are talking about the DOHC black cover ZC vs D16Z6, not the SOHC VTEC ZC vs D16Z6, because the second two are vitually identical.