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. Classic / Vintage (2) Harley-Davidson Knucklehead Motorcycles For Sale: 31 Motorcycles Near Me - Find New and Used Harley-Davidson Knucklehead Motorcycles on Cycle Trader.
1947 HarleyDavidson El Knucklehead
Home Cruiser Motorcycles The Harley-Davidson Knucklehead Engine: Everything You Need To Know By Harry Fisher Published Aug 25, 2023 The Knucklehead was one of the first modern motorcycle. The 61 cubic-inch E, ES and EL Harley-Davidson models ushered in the transition from the long-serving but under-powered side-valve flathead V-twin engine to the higher tech and higher powered. by Sedrick Mitchell 1936 Harley-Davidson EL 1936 Harley-Davidson EL Top speed: 95mph Engine: 60.33ci (988.56cc) air-cooled OHV 45-degree V-twin, 3-5/16in x 3-1/2in bore and stroke, 7:1 compression ratio, 40hp @ 4,800rpm Weight (wet): 515lb (234kg) Fuel capacity/MPG: 3.75gal (14ltr)/35-50mpg Published on Oct 8, 2015 Need Help? Call 1-800-880-7567 Harley-Davidson Knucklehead Article by Vintage Vinny In 1936, Harley-Davidson introduced their first overhead-valve Big-Twin motorcycle, the 61 cubic-inch EL model. The new bike was originally known as the "61 Overhead". The nickname "Knucklehead" wouldn't come about until years later.
1941 HarleyDavidson Knucklehead Is a Black Speck of American Motorcycle History autoevolution
Lifestyle Harley-Davidson Knucklehead V-Twin Motorcycles - HISTORY OF THE BIG TWIN The H-D Knucklehead V-twin was introduced in 1936. Here's a look at the technical evolution of the 61-cu.-in.. Now nicknamed the "Knucklehead" for its bulbous rocker boxes, surprisingly the new Harley-Davidson big twin was developed in Depression era America. The frame, forks, engine and much of the styling were all new. The Harley-Davidson Knucklehead engine replaced the cheaper and simpler flathead engines, offering more power and better performance. The Knucklehead engine was ahead of its time in design and. The Harley Davidson Knucklehead is a retronym referring to an engine blueprint produced by the American OEM from 1936 to 1947. This power mill had a piston displacement of 997—1,210 cm3 (61—74 ci), spewed 36—53 hp (26.8—39.5 kW), and was the forerunner of the Panhead and Shovelhead engines. The Knucklehead engine may have been rushed.
1946 Harley Davidson EL Knucklehead Perfect for Riding
Benjamin Smith | Updated on December 11, 2021 Have you ever heard of the Harley-Davidson Knucklehead? If you are a motorcycle aficionado, there is absolutely no doubt that you know exactly what it is. As a matter of fact, you might have not only heard of it, but perhaps you even own one yourself. The 1936 Knucklehead: Ahead of its Time. In the 1930s, Harley-Davidson had already solidified itself as a reliable maker, and that was proven through its acquisition of government contracts to supply motorcycles to both the US Military and other US governmental agencies. Even still, sales lagged as Harley took a backseat to its competitor, Indian.
Follow the journey of this 1941 Harley-Davidson "Knucklehead" motorcycle and see how its latest owner finished a restoration project that began in the 1980s. 1941 Harley Davidson EL Knucklehead Engine: 61ci (1,000cc) air-cooled OHV 45-degree V-twin, 3-5/16in x 3-1/2in bore and stroke, 7:1 compression ratio, 40hp @ 4,800rpm Top speed: 95mph The Knucklehead was available in three versions from 1936 to '38: The E, with 37 horsepower; the ES, for sidecar use; and the EL—the "hot" version—with 40 horsepower due to higher compression. When buyers saw more horsepower, they paid for it, and in 1938, Harley dropped the E model from the lineup. That makes an E Knucklehead one of.
1936 HarleyDavidson EL Knucklehead Hershey 2012 RM Sotheby's
What is the 1936 Harley Davidson EL Knucklehead? The 1936 Harley Davidson EL is a classic American motorcycle that was first introduced in 1936. It is known for its distinctive design, including a V-twin engine, teardrop-shaped fuel tank, and "horseshoe" oil tank. The FL was Harley-Davidson's first modern "heavyweight" motorcycle. Introduced in 1941, the FL featured the high compression version of the company's first 74-cubic-inch overhead valve V-Twin "Knucklehead" engine. Only 2,452 FL's were built in 1941 before the company converted from civilian to military production for World War II.
