Reproduction positive crankcase ventilation valve or PCV valve for 1967 Mercury Cougar, Cyclone, Ford Mustang and Torino all with 390GT or S code 390-4V engines. This valve has a stamped casting number of C7AE-6A666-B, comes with a white plastic ring as shown. Ford engineering number C7OZ-6A666-A. Also used on 1967 Shelby Mustang GT500, Ford 428PI, and Mercury Cougar GT-E 427-4V engines.
*Note - Must be used with either a reproduction or original 90 degree PCV adapter.