I have an odd Question. I found metal Mercury Valve Covers with lighting bolt for my wifes 390. Does anyone know did Mercury make Small Block Valve Covers other then powered by Ford?? Any information would be great
Royce, I hate to correct you, but I am pretty sure these were used on 65 and 66 full size Mercury. For 1967 they were only used on early full size with the engine compartment chrome dress up kit and on the S-55. For the other 67 full size Mercurys I have seen two styles, very early cars appears to have the same valve cover as 66 390GT Fairlane and Cyclone and then from an unknown date in the fall 1966 they started using the “Power by Ford” valve covers.