I have a 93 Civic DX (d15b7 motor), and I'm getting info on putting a d16z6 cylinder head on it. I know a full motor swap would be better, but it's also more expensive and since I'm going to change my timing belt and water pump anyway, a mini-me swap didn't seem like too much extra work. I know this topic has been covered many times already, but I cannot find clear answers to some of my questions.

I know this will raise my compression ratio a good amount. Can I keep my stock internals and not risk destroying my engine? Will it just blow up in a few thousand miles? Do I need premium fuel?

Also, where should I get parts? I don’t want to take them out of any junked Civic since they might not be functional in the first place. Should I just buy junked parts and send them away to be remanufactured or inspected?

Thanks in advance.

 

the reliability of any motor depends on how you drive it and who built it.