please Help! JDM engine differences..

Ok as some of u know already with some of my posts, I have made up my decision and decided to install a 93-95 JDM spec H22a prelude Type S engine in my hatchback. My question is how do I tell the difference between that JDM type S engine and some other inferior H22 like the "H22a1" that only produces 190 HP. I just want to make sure I get the 220 HP JDM engine. THe only signifying mark that I am aware of at this point is that this engine comes with the engine code of "H22a" with no other numbers or letters signifying it. Is this right? Is there anything else? Thanks everyone.