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Harley-Davidson Twin Cam engine at the Harley-Davidson Museum. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with ...
From left: William A. Davidson, Walter Davidson Sr., Arthur Davidson and William S. Harley In 1901, 20-year-old William S. Harley drew up plans for a small engine with a displacement of 7.07 cubic inches (116 cc) and four-inch (102 mm) flywheels [8] [9] designed for use in a regular pedal-bicycle frame.
Harley-Davidson FLHXXX Street Glide Trike 103 2010, 2011 Harley-Davidson Servi-Car: 1932–1973 Harley-Davidson Tri Glide Ultra Classic: 103 cu in (1,690 cc) OHV V-twin 2009– Harley-Davidson Freewheeler: 104–107 cu in (1,700–1,750 cc) Milwaukee 8 2015– Harley-Davidson Road Glide 3 114 cu in 2023-
This engine was redesigned as an OHV for the 1956 model year, [3] but the flathead version reemerged in 1958 as the economy engine for the "new" Rambler American and remained available through 1965. [3] American Motors introduced a die-cast aluminum block version of the OHV 195.6 cu in (3.2 L) engine in 1961 and produced it through 1964. [4]
Also available in the Sportster model beginning in 1986, it was made in the 1,100 cc (67 cu in) displacement until 1988 and is still made in the 883 cc (53.9 cu in) and 1,200 cc (73 cu in) [1] displacements for the Harley-Davidson Sportster, replacing the ironhead Sportster engine.
The Harley "Iron" was introduced in 2009 as a smaller-displacement version of the Nightster. The major differences are blacked-out engine, cast wheels instead of laced; narrower handlebars; and of course the smaller 883 cc engine displacement compared to the Nightster's 1200 cc. The Nightster was discontinued in 2012. [13]
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.
Harley-Davidson KHK The ironhead was a Harley-Davidson motorcycle engine , so named because of the composition of the cylinder heads (Iron instead of Aluminium). The engine is a two-cylinder, two valves per cylinder, pushrod V-twin .