Where is number seven on 5.4 Triton engine?

There's no universally standardized "number seven" location on a 5.4L Triton engine. The numbering scheme for cylinders varies depending on the specific engine orientation (and even sometimes the manufacturer's documentation!). To find cylinder #7, you need to:

* Consult the engine's specific service manual: This manual, specific to the year and model of vehicle the engine is in, will have a diagram showing the cylinder numbering. This is the most reliable way to determine the location.

* Look for markings on the engine itself: Some engines have markings cast directly into the engine block or cylinder heads indicating cylinder numbers. These are usually near the spark plug wells or valve covers.

* Use a visual reference: Numerous online resources (like repair manuals websites or forums specific to the vehicle) might have pictures or videos showing the cylinder layout. However, always double-check against your specific engine's service manual.

Without knowing the specific year, make, and model of the vehicle containing the 5.4L Triton engine, it's impossible to give you the precise location of cylinder #7.