if you are looking to get a "police interceptor" you may want to look towards the older cars granted chevy never named it a police package there are some older guys i know that have had old impalas with BBC mainly and some SBC from the police auctions
and there is a myth that some older caprices (78-82) that have BBC installed by the fleet maintance
and there is a myth that some older caprices (78-82) that have BBC installed by the fleet maintance