Another dumb question quick. Will the starter, altenator, air cond. compressor, ect. from my current motor match up to a JDM H22? Will US spec parts work on a JDM motor? Finally, besides hp, what's the difference between a US H22 and a JDM H22? Gotta go it's Miller time!

 

Um, dude, first things first. What is your current motor?

 

2.2 non-VTEC. Another one quick. why do I need a U.S. spec fuel rail and ECU?

 

Answered in other thread. And what's your car?
There are so many combinations of cars and motors there's no one way to do it.