* 5.3L V8: This was the standard engine, producing 320 horsepower and 335 lb-ft of torque.
* 6.0L V8: This was an optional engine, producing 352 horsepower and 383 lb-ft of torque.
* 6.2L V8: This was a more powerful optional engine, producing 403 horsepower and 417 lb-ft of torque.
To know which engine a specific 2012 Tahoe has, you'd need to look at the vehicle's documentation or contact the previous owner.
