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The Harley-Davidson Milwaukee-Eight engine is the ninth generation of "big twin" engines developed by the company, but only Harley's fourth all-new Big Twin in 80 years, first introduced in 2016. These engines differ from the traditional Harley Big Twin engines in that there are four valves per cylinder, totaling eight valves, hence the name.
This gave the new engine an extra 10 horsepower, along with a different appearance. [1] The engine gained the nickname “Shovelhead” because its rocker covers look a little bit like an upside-down coal shovel. [2] While the engine did have problems, it gave Harley-Davidson a 26% sales increase during the early part of its timeline. [3]
The prototype of the new loop-frame Harley-Davidson was assembled in a 10 ft × 15 ft (3.0 m × 4.6 m) shed in the Davidson family backyard. [11] [12] Most of the major parts, however, were made elsewhere, including some probably fabricated at the West Milwaukee railshops where oldest brother William A. Davidson was toolroom foreman. This ...
The engine was designed according to the system De Dion-Bouton, had a displacement of 167 cc and made about 2 ps (1.5 kW). Since Harley and Davidson were dissatisfied with the performance, in 1904, cubic capacity was increased to 405 cm 3 at one of bore 76 mm and one stroke 89 mm. From this pre-production model came two copies.
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 ...
"Harley-Davidson Timeline 1960s". Harley-Davidson Timeline. Harley-Davidson. 2015. Archived from the original on 2006-10-29 The Harley-Davidson Topper motor scooter is introduced and is the only scooter platform the Motor Company ever produced. The Auto Editors of Consumer Guide (2007-09-18). "1963 Harley-Davidson Topper".
Harley-Davidson engines are now made at Harley-Davidson Motor Company's Pilgrim Road Powertrain Operations facility in Menomonee Falls, Wisconsin. The company's founders started making smaller flathead motorcycle engines individually by hand and fitted to bicycles in the 10 ft x 15 ft wooden barn in Milwaukee that was the Harley-Davidson ...
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 .