|Harley Davidson Motor Cycles Index |
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Harley Davidson Motors - The Beginning
There have been lots of different motors used by Harley Davidson since 1901 and some of these are mentioned below in a snap-shot fashion. The first of the Harley Davidson motors was used in the initial pedal assisted motorcycle, which featured a 116cc engine. As this didn’t have enough power to carry a rider up some of the local hills in Milwaukee, Wisconsin (where Harley Davidson began), an improved and bigger motor featured in the follow up design with a one cylinder 405cc engine. This was the first of the Harley Davidson motors to be raced (State Fair Park, September, 1904) and although an enhancement had been made to the output of power, it only achieved a modest fourth spot. Take a look at our high definition video of various Harley Davidson Motors, including two very old models!
Harley Davidson Motors - Different F-Head & Flatheads
The one cylinder Harley Davidson engines were used from 1903. Up until 1905, 27.4” F-head motors were utilised in Harley Davidson motorcycles, between 1906-08 26.8” F-head Harley Davidson motors were used, 1909 through to 1912 30” flathead motors, 1913 to 1918 35” flathead motors, 1921 to 1923 37” flathead motors, 1926 to 1929 21” over-head valve motors, 1926 to 1934 21” flathead motors, 1929 to 1934 30.5” flathead motors, 1947 to 1965 hummer motors and 1960 to 1965 Harley Davidson Topper motors were used. The ‘F-head’ motors consisted of a one-valve assembly for internal combustion and shouldn’t be confused with Flathead motors.
Harley Davidson Motors - Knucklehead & Panhead
Harley Davidson Big V Twin motors were used from 1914, the F-head IOE (intake over exhaust) motors were used until 1929 (1000cc & 1200cc) and the Harley Davidson Flathead motors were utilised from 1930 to 1948 (1200cc & 1300cc). Harley Davidson Knucklehead motors were used from 1936 to 1947 (1000cc & 1200cc), the Harley Davidson Panhead motors between 1948 and 1965 (1000cc & 1200cc), Shovelhead motors from 1966 to 1985 (1200cc & 1345cc), Evolution motors from 1984 to 2000 (1340cc) and the Harley Davidson Twin Cam motors from 1999 onwards (such as the Fathead 1450cc, different Touring models 1550cc, 1584cc, 1690cc and CVO models 1802cc).
Harley Davidson Motors - Sport, Ironhead & Evolution
Harley Davidson Sport motors have been used since 1919. Harley Davidson ‘W’ Sport were used until 1923, XA motors during 1942, D motors between 1929 and 1931 (750cc), R motors from 1932 to 1936 (750cc), W V Twins from 1937 through to 1952 (750cc), G motors between the years 1937 and 1973 (750cc), WR motors from 1941 to 1952, K motors from 1952 to 1953 (750cc), KHs between 1954 and 1956 (900cc), KR motors from 1952 to 1969, Ironheads from 1957 through to 1985 (1000cc), Harley Davidson XRs from 1970 onwards and Harley Davidson Evolution motors (known as ‘Evo’) from 1986 onwards (883cc, 1100cc & 1200cc).