First off you wouldnt call the USDM F22B head a version of JDM F22B DOHC head or vice versa. One is DOHC and the other is SOHC. The USDM version to the JDM F22b DOHC would be the H23A Head. I've seen it done before, also are you talkin about the vtec or non vtec head. Vtec heads I believe needs an oil port blocked, cant really provide too much info for you man, keep searching though.
