How much water does a 5.4L engine holds Total capacity Block and radiator?

You can't determine the total water capacity (block and radiator) of a 5.4L engine solely from its displacement. The coolant capacity varies significantly depending on the specific make, model, and year of the vehicle. The engine design, radiator size, and whether it has a coolant reservoir all affect the total capacity.

To find the exact coolant capacity for your specific 5.4L engine, you need to:

* Consult your vehicle's owner's manual: This is the most reliable source of information.

* Check online resources: Websites like the manufacturer's website or parts websites often list specifications for specific vehicles. You'll need to know the year, make, and model of the vehicle.

Without that specific information, any number I give you would be a guess and potentially inaccurate. It could easily range from 6-12 liters, or even more, depending on the vehicle.