regarding the oil jets. they do fit the hseries blocks, but if you plan on running factory pistons the piston skirt will not clear the jet tips. im running type s pistons and have fitted the 2.3, 2.2, and jdm 2.2 pistons to check clearance.
depending on what you will build up from, it may require more than "swapping a headgasket and timing belt."
a couple people on this board have done the build. search the forums and you should find good information. then hit us up with harder questions
ludeboom, part numbers on the 2.3 and 2.2 block itself(alone) are the same...are you sure 2.2vtec blocks are frm only? the 2.2sohc is the bum leg with a diff part number.
v