I own a 92 Civic HB Si which has an engine code of D16Z6. My cylinder head is pretty messed up so I found a good deal on a Y8 cylinder head. I'm pretty much sure it will fit right onto my block but my question is....
What is the differance between a Z6 head and a Y8 head? This head came off of a '97 civic. Would the Y8 cylinder head be better than the Z6?

My future plans are to build a cylinder head and boost it. I got a good deal on a complete turbo kit as well, so I just want to make sure im doing things right the first time by getting the best head for this application. Thanks for the help.