special editions and overview of engines

110th Electra Glide ultra limited

110th fat boy edition

110th heritage softail classic

110th anniversary special edition bike

ENGINES:

Big V-twins

• F-head, also known as JD, pocket valve and IOE (intake over exhaust), 1914–1929 (1,000 cc), and 1922–1929 (1,200 cc)
• Flathead, 1930–1948 (1,200 cc) and 1935–1941 (1,300 cc).
• Knucklehead, 1936–1947 61 cubic inch (1,000 cc), and 1941–1947 74 cubic inch (1,200 cc)
• Panhead, 1948–1965 61 cubic inch (1,000 cc), and 1948–1965, 74 cubic inch (1,200 cc)
• Shovelhead, 1966–1984, 74 cubic inch (1,200 cc) and 80 cubic inch (1,338 cc) since late 1978
• Evolution (a.k.a. "Evo" and "Blockhead"), 1984–1998, 80 cubic inch (1,340 cc)
• Twin Cam (a.k.a. "Fathead") 1999–present, in the following versions:
  • Twin Cam 88, 1999–2006, 88 cubic inch (1,450 cc)
  • Twin Cam 88B, counterbalanced version of the Twin Cam 88, 2000–2006, 88 cubic inch (1,450 cc)
  • Twin Cam 95, since 2000, 95 cubic inch (1,550 cc) (engines for early C.V.O. models)
  • Twin Cam 96, since 2007. As of 2012, only the Street Bob and Super Glide Custom Models still use the 96.96 cubic inch (1,584 cc)
  • Twin Cam 103, 2003–2006, 2009, 103 cubic inch (1,690 cc) (engines for C.V.O. models), Standard on 2011 Touring models: Ultra Limited, Road King Classic and Road Glide Ultra and optional on the Road Glide Custom and Street Glide. Standard on most 2012 models excluding Sportsters and 2 Dynas (Street Bob and Super Glide Custom)
  • Twin Cam 110, since 2007, 110 cubic inch (1,800 cc) (engines for C.V.O. models)

Small V-twins 

D Model, 1929–1931, 750 cc

• R Model, 1932–1936, 750 cc
• W Model, 1937–1952, 750 cc, solo (2 wheel, frame only)
• G (Servi-Car) Model, 1932–1973, 750 cc
• K Model, 1952–1953, 750 cc
• KH Model, 1954–1956, 900 cc
• Ironhead, 1957–1971, 883 cc; 1971–1985, 1,000 cc
• Evolution, since 1986, 883 cc, 1,100 cc and 1,200 cc

Revolution engine:

A 1,250 cc Screamin' Eagle version of the Revolution engine was made available for 2005 and 2006, and was present thereafter in a single production model from 2005 to 2007. In 2008, the 1,250 cc Revolution Engine became standard for the entire VRSC line. Harley-Davidson claims 123 hp (92 kW) at the crank for the 2008 VRSCAW model. The VRXSE Destroyer is equipped with a stroker (75 mm crank) Screamin' Eagle 79 cubic inch (1,300 cc) Revolution Engine, producing more than 165 hp (123 kW).The Revolution engine is based on the VR-1000 Superbike race program, co-developed by Harley-Davidson's Powertrain Engineering team and PorscheEngineering in Stuttgart, Germany. It is a liquid cooled, dual overhead cam, internally counterbalanced 60 degree V-twin engine with a displacement of 69 cubic inch (1,130 cc), producing 115 hp (86 kW) at 8,250 rpm at the crank, with a redline of 9,000 rpm. It was introduced for the new V-Rod line in 2001 for the 2002 model year, starting with the single VRSCA (V-Twin Racing Street Custom) model.

750cc and 500cc versions of the Revolution engine will be used in Harley Davidson's new Street line of light cruisers.

Single-cylinder engines:

The first Harley-Davidson motorcycles were powered by single-cylinder IOE engines with the inlet valve operated by engine vacuum. Singles of this type continued to be made until 1913, when a pushrod and rocker system was used to operate the overhead inlet valve on the single, a similar system having been used on their V-twins since 1911. Single-cylinder motorcycle engines were discontinued in 1918.IOE singles

Flathead and OHV singles

Single-cylinder engines were reintroduced in 1925 as 1926 models.These singles were available either as flathead engines or as overhead valveengines until 1930, after which they were only available as flatheads.The flathead single-cylinder motorcycles were designated Model A for engines with magneto systems only and Model B for engines with battery and coil systems, while overhead valve versions were designated Model AA and Model BA respectively, and a magneto-only racing version was designated Model S. This line of single-cylinder motorcycles ended production in 1934.