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Does a 2005 Buick Terraza have an interference or an non-interference engine? on 2005 Buick Terraza

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Repair shop had to fix the half moon key that hold the gear that goes around the timing belt. They replaced it but now they say there's no compression in cylinders 4 and 5. They think the valves are bent.

If this engine is a non-interference engine would the valves get bent?

Engine specs:
Base engine size: 3.5 L
Cam type: Overhead valves (OHV)
Cylinders: V6
Valves: 12
Torque: 220 ft-lbs. @ 4400 rpm
Horsepower: 200 hp @ 5200 rpm
Turning circle: 41.0 ft.
Base engine type: gas
(1) Answer
(2) Comments
No. It just stopped running. I just filled up with gas and was driving on the service road about to get on the highway when it died. Engine stopped running. The engine light didn't come on until I tried to start it again. Temperature was fine. No steam or leaking coolant.
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