I'm considering swapping a D16Z6 head on my '98 Civic DX and I had a few questions that I hope someone can help me with.

First off, what additional hardware (besides the head) is required? ECU, harness, ect.?

Will I still be able to keep my OBDII equip. functioning properly?

What comp. ratio am I looking at w/a standard (thickness) head gasket?

Sorry for all the noob questions, I appreciate any help you can offer.