Harley Davidson Engines
#1
05-21-2012, 08:42 AM
Harley Davidson Engines
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
#2
05-21-2012, 08:49 AM
I think you missed the F-head motors, with the Overhead intake and side Exhaust valves used during the teens and twenties. Look at J series H-D motors.
You may have confused the F-head with the with Flathead which is often called Side valve or L-head.
You may have confused the F-head with the with Flathead which is often called Side valve or L-head.
#3
05-21-2012, 09:01 AM
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Join Date: Oct 2005
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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
#7
05-21-2012, 12:16 PM
I had a 1942 Flat Head "45" back in the 50's. If I remember right there were some "74" flat heads also. And, the flat head 45 was used in the servicar up into at least the late 60's I think.
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#8
05-21-2012, 07:53 PM
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Join Date: Oct 2005
Location: Santa Klaus County, Cali
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Couple of more points....First HDs were F-heads; 1928 was the debut of the sidevalve; 1929 was the intro of the first 2 cam (twin cam) motor; 48 was the end of the UL/ULH sidevalves, but the 45s stayed in the game until 73? as a servicar for use as police utility bikes; AMF years were the majority of the shovel years until bought back by HD family in 1982.
#9
05-21-2012, 08:00 PM
Club 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 1966-1984
The distinctive enclosed cylinder head sets it apart. fixed that for you they made shovels till 85 but only the 84 and back where available to to the public
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 1966-1984
The distinctive enclosed cylinder head sets it apart. fixed that for you they made shovels till 85 but only the 84 and back where available to to the public
Evolution 1984-1999
The now famous AMF engine. Harley also went public during this time
Twincam 1999 - present
Harley's first twincam
#10
05-21-2012, 08:32 PM
Seasoned HDF Member
In light of all the newbies I see around here. I thought this might clear things up:
Flathead 1909-1936 Didn't make flatheads till 29...and made them till 73 in servi cars
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 many documented shovels in police bikes till 85
The distinctive enclosed cylinder head sets it apart.
Evolution 1984-1999 Evo made it to at least 2000 in the FXR remake
The now famous AMF engine. Harley also went public during this time
Twincam 1999 - present
Harley's first twincam First twincam was in the twenties...JD's
Flathead 1909-1936 Didn't make flatheads till 29...and made them till 73 in servi cars
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 many documented shovels in police bikes till 85
The distinctive enclosed cylinder head sets it apart.
Evolution 1984-1999 Evo made it to at least 2000 in the FXR remake
The now famous AMF engine. Harley also went public during this time
Twincam 1999 - present
Harley's first twincam First twincam was in the twenties...JD's
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