I think you have to switch the COPS to make it work. There may be something else, but its not too difficult. You would be better off getting a 99/01 motor though as they have better heads/intake. Drop it in and go. There may be more that I'm forgetting though.
but i believe a dealership could reflash the computer to have the correct vin in the computer like putting a used computer in a car the vins dont match till there reflashed i could be wrong but we change computers with junk yard computers all the time we just have them reflashed