VIN Change and Engine Swap....

I have a 2003 Pontiac Grand Am GT with the 3400 V6 however I am looking at putting the 2.2L Ecotec in her along with a 2003 4cyl computer. I have a few questions about doing this...

-My year Grand Am was available with the 2.2L Ecotec so is there really any issue with doing this...legally?

-Am I actually able to change the VIN in the computer to what my cars vin plate says...even though the engine code would be different?



If anyone could help, it would be really helpful. I mean I know the car will run flawlessly because, like I said, the car from that year was made to go with the Eco(along with the tranny...same tranny) but I don't want to run into issues when I go and have it smogged this next year.


CHRIS

Anyone?



CHRIS