* 2.9L Inline-6 (B6294T) - This was a turbocharged engine producing 268 horsepower and 295 lb-ft of torque.
* 4.4L V8 (B8444S) - This was a naturally aspirated engine producing 311 horsepower and 325 lb-ft of torque.
Please note that these are the base engine options available for the 2003 XC90. Depending on the specific trim level and market, there might have been additional engine options.
To know the specific engine in your 2003 Volvo XC90, you can check the vehicle identification number (VIN).
