The engine number on a 1997 Chrysler Voyager 3.3L V6 is typically located on the
right (passenger) side of the engine block, near the front. It's often cast directly into the block itself, and might be partially obscured by components like the alternator or power steering pump. You'll likely need a flashlight and possibly some maneuvering to see it clearly.
It's a good idea to consult a repair manual specific to your year and model Voyager for a precise location and a picture. The manual will often show you exactly where to look.
