To find a suitable replacement, you need to specify *which* 4.6L you currently have (there were different versions with varying horsepower and features). Then, you'd need to research engines from similar Ford/Lincoln/Mercury vehicles from around the same year (1998-2002 roughly). Even then, you'll likely need to verify compatibility with respect to:
* Engine Code: This is crucial. The engine code (found on a sticker on the engine block or in service manuals) will tell you the exact specifications of your current engine. A replacement should have a very similar, if not identical, engine code.
* Transmission Compatibility: The engine must mate properly with your existing transmission.
* Wiring Harness: The engine's wiring harness needs to be compatible with your vehicle's existing harness. This is a significant potential hurdle.
* Mounting Points: The engine must physically fit within the engine bay and bolt to the existing mounts.
* Exhaust System: While likely adaptable, exhaust system compatibility needs checking.
Instead of searching for a direct "other" 4.6L, your best bet is to find a used, low-mileage 4.6L from a salvage yard or reputable parts supplier, *specifying the engine code* of your current engine. This increases the odds of a successful and straightforward swap. Improperly matching engines can lead to extensive issues.
