Harley Davidson Engines
#33
05-24-2012, 09:37 AM
Tourer
Join Date: Sep 2010
Location: western slope Colorado
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Very High Plain Drifter Right, but apart from the Flathead, Knucklehead, Panhead, Shovelhead, Evolution, Revolution, Twin Cam, J-series, K-series, XL, hydraulic lifters, aluminium heads, improved cooling, more power, better reliability, electric start and design help from AMF, Kawasaki and Porsche... what have the Romans ever done for us?!
Didn't they give us Caligula???
Didn't they give us Caligula???
#35
05-24-2012, 01:15 PM
#36
05-24-2012, 05:24 PM
Twin Cam was dubbed the Fathead, per Donny Petersen Unauthorized Technical Guide on the Twin Cam, pg 4. That same page gives the nickname for all the Big Twin motors. Can't make a page scan but look it up. 
#37
05-24-2012, 07:00 PM
Seasoned HDF Member
Right, but apart from the Flathead, Knucklehead, Panhead, Shovelhead, Evolution, Revolution, Twin Cam, J-series, K-series, XL, hydraulic lifters, aluminium heads, improved cooling, more power, better reliability, electric start and design help from AMF, Kawasaki and Porsche... what have the Romans ever done for us?!
#39
05-25-2012, 02:50 AM
Grand HDF Member
In light of all the newbies I see around here. I thought this might clear things up:
Flathead 1909-1936
This is the motor that put Harlet on top of the motorcycle races in the twenties.
Knucklehead 1936-1947
Harley's first overhead valve V-Twin.
Panhead 1948-1965
Improved engine design with hydraulic lifters.
Shovelhead 1966-1983
The distinctive enclosed cylinder head sets it apart.
Evolution 1984-1999
The now famous AMF engine. Harley also went public during this time
Twincam 1999 - present
Harley's first twincam
Flathead 1909-1936
This is the motor that put Harlet on top of the motorcycle races in the twenties.
Knucklehead 1936-1947
Harley's first overhead valve V-Twin.
Panhead 1948-1965
Improved engine design with hydraulic lifters.
Shovelhead 1966-1983
The distinctive enclosed cylinder head sets it apart.
Evolution 1984-1999
The now famous AMF engine. Harley also went public during this time
Twincam 1999 - present
Harley's first twincam
http://en.wikipedia.org/wiki/Harley-Davidson
#40
05-25-2012, 05:42 AM
It didn't stick. If you called a twinkie a "fathead", no one (except Donny Peterson) would know what you were referring to.
Last edited by Mike; 05-25-2012 at 05:45 AM.