Ok, I have been looking in a bunch of previous topics on vtec and the zc. I know you cannot swap out a b series head to a d series block. But is there a vtec head that will fit on the d16? If so how well does this work on the zc block, does it raise compression, or how much hp gain are you looking at? How much are you looking at for a head like that? ECU type? Most of the topics I have been looking at really don't address those really well.