* 2.4L Quad 4: This was a fairly common engine for the Grand Am.
* 3.1L V6: A more powerful option than the 4-cylinder.
To know the *specific* engine in a particular 1997 Pontiac Grand Am, you'd need to check the vehicle's documentation (like the owner's manual or vehicle identification number (VIN) paperwork) or look at the engine itself (the engine displacement is usually stamped on it).
