500 hp, 12-cylinder Liberty engine. One of the few 55's ever built. The engine is a 1,650 cubic inch aluminum V-12 which produces 500 horsepower. The super light weight engine does not even have valve covers and weighs in at only 890 pounds. Although the engine is 90 years old it produces over 50% more horsepower per pound than modern marine engines. She was purchased in 1926 by Philip K. Wrigley of Chewing Gum fame and shipped to Lake Geneva, WI. He raced her until the engine blew up in 1931. She sat retired in her original cradle in the Wrigley’s humidity controlled boat house for the next fifty years.