Hello, I have a 1963 Falcon with a 260 V8. My air cleaner cover snorkel is missing the top spring on the exhaust riser valve. The attached photo is of the of a 1967 Fairlane 289, but you can see the spring in the snorkel in the upper left hand corner of the photo. Click on the photo to make it larger.

Does anyone know what the part number for this spring is, and if it is available somewhere for purchase? What is the correct name for this spring?

Thanks, Dennis in Tampa.

exhaust riser valve spring.jpg