i have a 94 hatch and its time for a swap its either gonna be a b18c or a b16a depending on how much money i can dig out of the couch but wither way it will be a jdm engine and i was wondering how hard it is to get parts for these engines and if usdm engine parts will work on them and i was also wondering where the jdm engines come from like why do they ship them over here

 

Im pretty sure the parts are all the same for a JDM and a USDM.