I have a b18a1 that I am going to be putting into my hatch. How do I know which b18a1 it is though? Aren't 90-91 130hp and 92-93 140hp? I know they are OBD0 and OBD1 but I don't know which one I have though. Is there a marking or stamp somewhere saying which one it is?

 

i know somebody has to know

 

It should say right on the head wut year is the motor!!! 4 lil circles on the head right about the headers should say wut year

 

thanks for the info...it's a '92