If it is the y8 head, then how come the d16y8 intake manifold that I bought for it won't fit correctly? There is a huge air leak that comes from around the seal. Everything is fixed and working now, but I was just wondering. I ended up using a different manifold than the y8 because the ports didn't match up correctly.

 

The y8 manifold should even fit on the z6 head. I have it on mine.

 

i wasnt totally sure what intake manifold it is, i think its a z6

 

The manifold that u gave me with the head was a crx intake mani. My friend has the same one on his 90 crx si. The one I tried putting on first was the d16y8.....that caused a huge vacuum leak from where the intake mani. And where the head meet. So finally I got a z6 manifold for it. And that has been workin fine.