Hey!
I was also checking for what parts to buy...and on that webpage: http://www.quickhonda.net/zc3.htm it says that engine is mostly the same as 1989 integra...and that integra has D16A1 engine, so i suppose D16A9 is the same as D16A1, or mostly the same.....

D16A6 i think it has weaker piston rods bearings...

I dont know what to order

Did anybody did that and knows which statement is correct.?

Thank you