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For over 40 years, Ansen Enterprises, Inc. has been manufacturing the highest quality American made valve covers on the planet. Ansen was run for many years by Els Lohn (SEMA Hall of Fame Inductee, 1965) and the design, manufacturing, & distribution facility is still located in southern California. As a true pioneer of the aftermarket industry, Ansen has continued to build on it’s long tradition of quality parts, with style and performance to enhance any hot rod, muscle car or classic street machine.