* 4.6L V8: This was the standard engine, producing 200 horsepower and 280 lb-ft of torque. This engine is commonly referred to as the "Windsor" engine.
* 5.0L V8: This was an optional engine, offering more power with 215 horsepower and 275 lb-ft of torque. This engine is commonly known as the "HO" (High Output) engine.
It's important to note that the specific engine in a 1993 Mercury Grand Marquis will depend on its individual trim level and options. If you're unsure which engine is in your specific vehicle, you can check the vehicle identification number (VIN) or look under the hood for an engine tag.
