Here are the most likely places to check:
* Top of the Engine Block (near the firewall): This is a common but not guaranteed location. Look closely for any stamped numbers or tags. You might need a flashlight and maybe even a wire brush to clean away grime for better visibility.
* Engine Bay - Various Components: The engine number might be stamped on other engine components, such as the cylinder head, transmission housing (though less likely), or even the alternator bracket.
* Vehicle Identification Plate (VIN Plate): While the VIN plate won't give you the *engine number*, it will provide the VIN itself. You can then use this VIN with a Ford parts lookup system (potentially through a dealer or online) to potentially retrieve the engine information.
* Under the Hood, Near the Windshield: Some manufacturers place identification numbers or tags in this area, but it's not as common as other locations.
* Service Records: If you have any service records or the original owner's manual, the engine number might be listed there.
Important Considerations:
* Rust and Corrosion: Since these are older cars, rust and corrosion could obscure markings.
* Previous Repairs: If the engine has ever been replaced or major repairs were performed, the original engine number might be gone.
* Professional Assistance: If you've exhausted all other options, a Ford mechanic or a local automotive repair shop will have the resources and experience to locate the engine number more easily. They might even be able to access information through their databases using the VIN.
It's a bit of a hunt, unfortunately. Be methodical and check every inch of the engine bay and surrounding areas.