Will a 2005 mustang 4.6 liter engine interchange and work in 1998 F150 with liter?

No, a 2005 Mustang 4.6L engine will not directly interchange with a 1998 F-150's engine, even if the F-150 also has a 4.6L. While both are 4.6L modular engines, there are significant differences between the Mustang's and the F-150's versions from those years:

* Different Engine Codes: The specific engine code (e.g., 4.6L 2V, 4.6L 3V) dictates internal components and mounting points. Even if both are 4.6L, the block itself may have different dimensions and mounting points that won't line up with the F-150's mounts.

* Wiring Harness and Computer: The engine control modules (ECMs) and wiring harnesses are completely different and incompatible. A significant amount of custom fabrication would be needed to make the electronics work.

* Accessories: The placement and type of accessories (alternator, power steering pump, etc.) will likely differ, requiring further adaptation.

* Transmission: While both might use the same *type* of transmission (e.g., automatic), the specific transmission and its mating to the engine will differ, requiring further adaptation or a complete transmission swap.

In short, while it's *theoretically* possible with extensive custom work (rewiring, fabrication of engine mounts, potentially transmission work), it's not a practical or straightforward swap. It would be far more cost-effective and less complicated to find a used 4.6L engine that is specifically designed for the 1998 F-150.