Vincent Black Shadow and C bikes having 1⅛" Amal 289 carburettors and Series D bikes having 1⅛" Amal Type 389/10 units. While other contemporary motorcycles tended to be polished and chromed, founder Philip Conrad Vincent (PCV) decreed that the Black Shadow engine itself be black. The engine's signature colour was achieved by applying a "pyluminising" coating of chromate anti-corrosion primer over which a layer of Pinchin & Johnson black enamel was added. The part was then baked in an oven for 2 hours at . Although some have claimed that the black finish increased the rate of heat rejection from the engine, its
Black Shadow (wrestler) to ailing health, forcing him to retire after almost 40 years in the business. After his retirement Cruz withdrew from the spotlight, rarely talking about his career. In 2001 Black Shadow was inducted in the Wrestling Observer Newsletter Hall of Fame for his contributions to professional wrestling. Cruz also appeared in numerous Mexican wrestling films with Santo, mostly billed as "Black Shadow" in the credits. In two Blue Demon films, ("Blue Demon en Noche de muerte" and "Santo y Blue Demon contra los monstruos") the Black Shadow played an evil duplicate (or clone) of Blue Demon, dressed in the Blue