so ijsut had someone replace my motor after it had locked up with one from a monte carlo with 28000 mi. 2 weeks later this one is now knocking. what would cause this? 2nd what all has to be changed for a gtp motor out of a 99 to fit in my bonnie thats a 02?

It should drop right in. I would use the bonne sensors, injectors and exhaust. I know the exhaust is a little different on the w bobies

The engine it'* self should drop right in, as stated, use your sensors.