Here's why:
* Serial numbers are not engine specific: The serial number you gave is likely a VIN (Vehicle Identification Number) or a similar chassis-related number. This identifies the entire car, not just the engine.
* 1970 Mustangs didn't have 5.0 engines: The 5.0L (302 cubic inch) engine became a common option in Mustangs starting in the late 1970s. 1970 models offered various V8 options like the 351 Cleveland, 428 Cobra Jet, and the 302 Windsor.
To identify the engine:
1. Check the engine block: Look for casting numbers on the engine block. These numbers can help identify the engine family and size.
2. Find the engine tag: There should be a tag attached to the engine, typically on the front passenger side. This tag contains information about the engine, including its displacement.
3. Consult a VIN decoder: A VIN decoder tool can provide information about the vehicle's specifications, including the engine.
4. Reach out to a Ford dealership or a classic car specialist: They may be able to help you identify the engine based on your car's details.
Remember, finding the engine details requires some research and potentially some hands-on inspection.