* 4.2L V6: A smaller, less powerful option.
* 4.6L V8: A common and popular choice.
* 5.4L V8: A larger displacement V8 offering more power.
To know the specific engine size of a particular 2007 F-150, you'd need to check the vehicle's documentation (like the owner's manual or vehicle identification number (VIN) sticker) or look at the engine itself.