Yes it is, as long as the 350 pump is not a late model pump.
Yes it's the same pump
the water pump is turned by the timing belt and it is recommended that you change the belt at the same time as the water pump
You do not need to replace a water pump and thermostat at the same time. These parts do not ruin each other.
The water pump and cam are driven by the same belt. The oil pump has no relation to these.
no its quite the same
Yes
No, but it can be recommended on a system where the timing belt runs the water pump.
If the water pump is driven by the cam belt then change the water pump at the same time.
If the timing belt drives the water pump you should replace the belt at the same time as the pump.
see answer given on how to change water pump on 92 deville. Same car.
If the water pump is driven by the same accessory belt as the power steering pump it could affect the ps pump.
Yes, Always change water pump at same time, save ya lots of work later,