What do you mean "about to die"? ANYTHING wrong with the Gsr would cost WAAAAY less to fix than putting an H22 in.
not to mention unless you are racing at a pro level a B18C can be made just as fast or faster than an H22 and you wont throw your handling off at all
The guy my cousin bought the car from abused the crap out of the motor, car smokes, burns oil, its most likely piston rings.... My cousin wants a h22 so what exactly would we need to get it in there? thx