If the engine is an interference engine, yes, you can have internal engine damage if the belt is installed incorrectly.
First off the 4.7L uses a timing chain, not a belt. Second, it could bend valves if the chain breaks.
YES!!!!!!
It depends on what valves are open when the chain fails. It could be any cylinder.
Did a lot of timing chain jobs on the Pontiacs back in the day, don't remember any of them bending valves.
YES...And I mean BAD BEND
In this case I would say no. It did not bend the valves.
Yes valves can bend if the timing belt breaks.Yes valves can bend if the timing belt breaks.
on some engine designs when the timing slips or is wrong the valve train will hit the pistons. something has to break, the valves, pistons, or the rods will bend.
There is no cam belt it is driven by a chain.
If it is an interference engine valves can bend when hit by the pistons.
If you are worried about bent valves DON'T That year engine will not bend the valves when the timing chain goes bad.
The timing belt goes and the valves bend.