Pretty much its just like any other D-series block so all the parts are interchangeable. Boring it yes thats fine same specs as any D16. The only difference between your single cam blocks (A6, Z6, Y7, etc.) and your dual cam blocks (ZC, A1, etc.) is that they have a unique head bolt pattern, which is why its not "possible" to put a V-tec head on it. The V-tec head swap has been done no doubt but it involves alot of drilling and machine work, in other words its just not worth it.