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1929 Willys-Knight 66B Plaidside


Chasis Number: 44458


Engine Number: 44642


Body Number: 44458



87 HP, 255 Cubic inch

inline “Knight Sleeve-Valve” six cylinder


Three speed manual transmission with synchro-mesh



Front and rear leaf-spring suspension with Watson Stabilators, and four-wheel mechanical brakes.


Wheelbase: 120 inches


Awards: October 2012 - where it received its First Junior Award Senior & Preservation honors

February 2013 - AACA Presidents Cup - Prestigious National honors

Best American Open Car - The Elegance at Hershey

Best in Class at the Hilton Concours

Best in Class and the Founder’s Trophy at the Ault Park Concours 2014 - Amelia Island Concourse Best in Class

In 1913, the Willys-Overland was the number two selling automobile in America, just behind Ford. That same year, John North Willys was told by his doctor that he had been working far too hard and should either go abroad or to a sanitarium. Not surprisingly, Willys choose Europe, but he could not stray far from his work. While there, he met Charles Yale Knight. Knight had invented an engine with sleeve valves rather than the usual poppet valves. Willys was not a mechanic, or an engineer by any means, but he saw the novelty of the sleeve valve and its promotional possibilities. The sleeve valves were much quieter in operation, but they had a propensity to burn more oil. Ultimately, the poppet valves won out, and beginning in 1914, Willys-Overland produced more Knight-engined cars than virtually all other manufacturers in the world combined. 

Although the Willys-Knight was in the middle-market range, Willys couldn’t resist giving his namesake car an upscale edition. The car was introduced at the 1929 New York Automobile Show, and it was styled by designer Amos Northup, who was better known for styling the handsome Reo Royale. It was Northup who gave the car its distinctive grid work on the doors, which the New York press labeled “Plaidside,” and the name stuck. Some 400 of the cars were produced, and only 250 had Plaidside. All with bodywork by Griswold of Detroit. This particular example is alleged to have been the New York show car and to have been sold to an IRS agent in Denver, Colorado, following the exhibition. It was acquired by the consignor in 2008 from an avid Willys-Knight enthusiast who had owned the car for decades. An exhaustive restoration to original condition then commenced, and in order to ensure that no detail was overlooked, a copy of the original specifications for the body from Griswold was consulted. The body was even refinished in the correct-factory color combination of Hunter Green with Harper Green fenders and accents.

The restoration was completed in October 2012, prior to the car debuting at the AACA Fall Meet in Hershey, where it received its First Junior award. It has gone on to win Senior and Preservation honors, as well as the AACA President’s Cup, one of the organization’s most prestigious national honors, in February 2013. Other honors include Best American Open Car at The Elegance at Hershey, Best in Class at the Hilton Head Concours, and Best in Class and the Founder’s Trophy at the Ault Park Concours.

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