100% accurate reproduction 1966 Valve Covers Unpainted 427 Big Block with Air Conditioning. These unpainted valve covers have the "AC Dent" even if the big block did not have air conditioning. This was used from approximately November of 1965 to January of 1966.
Drip rail are installed using projection welding process that leaves the correct "dimples" on the surface just as the factory covers. Factory covers were painted orange after installation on the engine.