The motor in a 1991 Accord is interchangeable with the engine in a 1992 Accord. They are only slightly different but will still interchange with no problems.
generally they may have different names and run on slightly more smaller engines and more economical engines as there is a high pollution rate in china, they will also be limited to 90 or so mph and...
im pretty sure its the k20z3 motor in the new civic si's (09 civic si.) that's stock now i don't know modded it all depends. I'd rather have the k20 type s out of the 05 rsx type s(that's just my...