Hello all Im trying to clean out some of my extra part and came across these . I changed my valve covers back to OEM 351 c covers and If any one needs a set OEM covers for the C let me know I bought a extra set and was going to paint them . I also have a set for the 351W my son got me ,he didnt know there was a difference. they say Powered by ford I think ,will check on that ,can send pic.