In the 1940s, Crosley’s COBRA engine (short for COpper BRAzed) became one of the most unusual automotive innovations in history. Built almost entirely from stamped sheet metal joined with copper brazing, it weighed just 133 pounds — less than half the mass of typical cast-iron engines of the era. Despite its featherweight design, it could deliver reliable performance for small cars, generators, and even military equipment.
Powel Crosley Jr., the visionary behind the project, sought to make automobiles more affordable and efficient during wartime metal shortages. His creation powered the Crosley CC sedan, the first postwar American compact car, achieving up to 50 miles per gallon — decades ahead of its time.
Though production challenges and durability issues eventually ended its run, the COBRA engine remains a symbol of fearless engineering and creative problem-solving that pushed automotive design forward.
Next time you visit the museum, be sure to check out our collection of Crosleys.
