How do you tell if have a Romeo or Windsor Ford engine?

You can't definitively tell if a Ford engine is a "Romeo" or "Windsor" just by looking at it. The terms "Romeo" and "Windsor" refer to the *manufacturing plants* where the engines were built, not a specific engine family or design. Many different engine families were produced at both plants over the years.

To identify what *kind* of engine you have (e.g., a 302, 351W, 460), you need to look for these identifiers:

* Engine Casting Number: This is the most reliable method. The casting number is usually found on a prominent surface of the engine block, often near the distributor or near the front of the block. This number is specific to the engine's design and year. You can then use this number to look up the engine specifications online using a Ford engine casting number database.

* Engine ID Tag: Older engines may have an engine ID tag affixed to the engine. This tag contains various codes that can help identify the engine type, year, and sometimes even the manufacturing plant.

* Intake Manifold: While not definitive, the intake manifold design can sometimes offer clues about the engine family. However, intake manifolds can be swapped, making this an unreliable identifier on its own.

* Valve Cover: Similar to the intake manifold, the valve cover design might offer hints, but it's not conclusive. Valve covers are frequently changed.

In short: Focus on finding the engine casting number. That's your key to identification. Once you have that, you can easily determine the engine's type, and then possibly deduce where it might have been built (though the manufacturing plant isn't usually included in the casting number itself).