When this 2003 Crown Vic was a police cruiser it housed a 4.6L SOHC V8 which didn’t produce the numbers many would expect. That’s why the new owner decided to install something with a little bit more power. The new motor starts with a 2004 4.6L iron block and includes Manley rods, Diamond low compression pistons, forged Cobra crank, 2004 Mustang Cobra 4v heads, and tops it off with a 2004 Mustang Cobra supercharger. All of this is good for 422 horsepower and 472 lb-ft of torque to the rear wheels. After the owner replaces the tired automatic for a rebuilt T-56 transmission it will actually be something to fear on the streets.
Source: Reddit via OppositeLock