I'm going to be building a 6.0 project for my 2000 Z28 M6 and was wondering if when the motor was complete can I just use my existing PCM since it's for a M6 and all or do I need the PCM out of the truck with the 6.0 ? Of course it will be dyno tuned and all so I'm thinking my existing PCM will be fine for the 6.0 but I just want to make sure. Thanks

 

Your existing PCM will be fine.
The tuner can flash over it with a different o/s if needed.