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- The 61 OHV engine was nicknamed "knuckle head" for the shape of the rocker boxes on top of the cylinder heads. With the protruding rocker shaft bolts these rocker boxes resemble the knuckles of a clenched fist.
www.motorcyclespecs.co.za/Techinicale/HD Knucklehead.htm
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Jun 8, 2014 · The Knucklehead name is based on the look of the cylinder heads with the big bolts and shapely rocker covers looking like the knuckles of a fist to many. They were produced from 1936 model year to 1947.
Jul 25, 2024 · The Vintage Harley Davidson Knucklehead features a V-twin engine with a displacement of 61 cubic inches, generating 40-50 horsepower. It is equipped with a 4-speed transmission that offers smooth gear shifts and direct drive in top gear for efficiency.
The knucklehead is a retronym used by enthusiasts to refer to a Harley-Davidson motorcycle engine, so named because of the distinct shape of the rocker boxes. The engine is a two cylinder, 45 degree, pushrod actuated overhead valve V-twin engine with two valves per cylinder.
Dec 11, 2023 · Some riders may prefer the Knucklehead for its historical significance as Harley’s first OHV engine. Others may lean towards the Panhead for its unique “cake pan” design, while some may favor the Shovelhead for its power and ability to accommodate heavier bikes.
The knucklehead is a retronym used by enthusiasts to refer to a Harley-Davidson motorcycle engine, so named because of the distinct shape of the rocker boxes. [1] The engine is a two-cylinder, 45 degree, pushrod actuated overhead valve V-twin engine with two valves per cylinder.
Comparing Panhead, Shovelhead, and Knucklehead. Exploring the differences among Panhead, Shovelhead, and Knucklehead engines offers insight into Harley-Davidson’s innovation over time. I’ll examine their design, engineering, riding experience, and maintenance.
Jun 27, 2024 · In the mid-1930s, Harley-Davidson introduced the Knucklehead engine, named for its distinctive rocker boxes resembling clenched fists. This groundbreaking design featured overhead valves, a departure from the side-valve configuration prevalent at the time.
