C7ZZ-6A664-B Original used hose that connects the original threaded PCV valve combination with C7OZ-6A706-A elbow and the 390 PCV transfer tube on the intake manifold. Molded hose with 5/8" valve end and 1/2" tube end. All 1967-68 S code 390GT or 390-4V engines and 1968-69 428CJ and 428SCJ engines, includes Cougar, Mustang, Fairlane, Torino, Ranchero, Cyclone, and Comet. Used hoses will have faded striping (if present), and clamp impressions. Very often the rubber will be hard and showing some degree of stress cracks.
*Note - Excludes 1969 S code 390-4V and 1970 428CJ engines.