[rberns]

Originally Posted by pickwithaustin

It will void the power train, yes.
If you have bumper to bumber and a dash cracks though, the ECM programming won't affect that.

Not entirely true.

Last fall I had a cam swap done on the car. During the winter and into the early spring while it sat in storage i notice a small coolant leak. Last spring I brought it into the dealership and showed them where it was leaking from thinking I might need a new line installed since the car sits so much. Come to find out my oil cooler line fitting was cross threaded to the engine block from the factory. GM stated that although I had modified my engine and tuned the car they understood that none of my mods had nothing to do with why it was leaking coolant. Which there is a TSB on this issue. GM paid for the cost of a new engine block and the labor to remove old engine and install new engine.