Chances are good, especially if you keep trying to start/run it.
Normally no.
First off the 4.7L uses a timing chain, not a belt. Second, it could bend valves if the chain breaks.
Did a lot of timing chain jobs on the Pontiacs back in the day, don't remember any of them bending valves.
Damage is only done if the motor is an "interference" design. ie the valves and the pistons overlap in the same place, only kept from colliding by the timing chain. When the timing chain breaks on a interference design, valves and pistons smash together. If it's not an interference design, the pistons and valve won't come into contact if the timing chain breaks, so odds are no internal damage done.
The Simple answer is yes the piston its the valves and possibly damage the pistons
This does depend on the engine design itself. If it is known as an interferance engine, then it is possible that the pistons can hit the valves if the chain breaks in operation.
Unfortunately yes. The Saturn motor is considered an Interference motor. When the chain breaks the neutral landing position of the camshafts will allow valves to be open, as the engine slows down from its rotating mass it will bend these open valves.
It has a chain.
There is no cam belt it is driven by a chain.
If the timing chain broke on the quad 4 you don't need to worry about a chain you need a new head when the timing chain breaks on them it lets the valves come down and hit the top of the pistons which binds the valves or at least that what i have seen.
Chain.
I wouldn't recommend it. The timing chain synchronizes all of the valves and pistons so that the valves for the right cylinder open at the proper time. If the timing chain breaks while the engine is running, you've got a really good chance of destroying your engine, and I do mean "destroying" your engine.