Hi, first off, I am new to the forum. My Accord has 145K miles on a stock engine so am doing research and getting ready to swap engines once mine goes out. I have read about JDM H22 and USDM H22A1 and A4s. If am not mistaken, the H22A4 is found in the SH Models? I live in California so I want this vehicle to pass smog and be legit. How can I distinguish if the engine is from a 01 Prelude and whether or not is a SH or not? Anything in the Bin # that I need to look for?