* 5.7L Vortec V8: This was a very popular choice.
* 7.4L Vortec V8: A larger, more powerful engine, often found in higher trim levels.
To know for sure which engine *your* specific 1997 Suburban has, you'll need to check:
* The vehicle's title or registration: This often lists the engine size.
* The sticker on the driver's side doorjamb: This sticker contains the vehicle's specifications, including the engine.
* The engine bay: The engine itself will have markings indicating its displacement (e.g., 5.7L or 7.4L).
Without more information about your specific Suburban, it's impossible to say definitively.
