* Engine Modifications: Police packages often had upgraded components beyond the standard engine. This isn't definitive proof, as civilians may have made similar modifications, but it's suggestive. Look for:
* High-output alternator: Needed for the extra electrical demands of police equipment.
* Heavy-duty cooling system: Larger radiator, possibly upgraded cooling fans.
* Transmission cooler: Larger or additional transmission cooler.
* Heavier-duty suspension and brakes: While these aren't strictly engine-related, they often accompanied police packages. The presence of heavy-duty parts suggests the car might have a more robust engine to match.
* Exhaust system: A higher-flow exhaust might be present, but this is less reliable as a police-specific indicator.
* Wiring Harnesses: Police packages typically had extensive additional wiring for lights, radios, and other equipment. Inspecting the wiring harness for unusual bundles or connectors might reveal aftermarket additions. However, this requires significant mechanical knowledge and access to the car's wiring.
* Vehicle History Report: A comprehensive vehicle history report (like a Carfax or AutoCheck) might indicate prior police or government fleet ownership. This is the most reliable method.
* Physical Evidence: Look for any remaining evidence of police equipment or markings. This could include mounting points for lightbars, siren wiring, or even faint traces of paint or decals. This is circumstantial.
Important Note: Many modifications can be added to any Crown Vic. Finding some of the upgrades listed above does *not* guarantee it's a police package engine. The only sure way to know is through documentation. A simple visual inspection is unlikely to provide a definite answer.
