Will this radiator fit my Crown Vic without modifying the engine bay?

Yes. This unit mounts at factory attachment points with no drilling, cutting, or bracket fabrication. Hose connections align with stock locations.

Do I need to flush the cooling system before installing this radiator?

Flush the system completely before the swap. Old coolant buildup will compromise heat transfer and void the thermal performance you're paying for.

What coolant type should I use after installation?

Check your owner's manual for the correct coolant specification and refill capacity. Crown Vics from this era typically run orange or green formulations — mixing types can cause corrosion inside the core.