Model A: 1933-1948 L-Head (2.25″ Bore by 2.25″ Stroke) Type “A” Magneto


Model B: 1934-1948 L-Head (2.625″ Bore by 2.625″ Stroke) Type “A” Magneto


Model F (Full Power): 1921-1922 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm Made of Sheet Metal, No Blower Housing, Two Bolt Mounting Base, External Drip Oiler


Model FB (Full Power): 1923-1924 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm Made of Forged Bronze, Two Bolt Mounting Base, No Drip Oiler


Model FC (Full Power): 1924-1925 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm


Model FE: 1925 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm


Model FH: 1925-1933 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm


Model FHI: 1925-1933 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm


Model FG: 1927 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Single Rocker Arm


Model FI: 1927-1933 Over Head Valve (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto
. Two Rocker Arms


Model FJ-1 & FJ-2: 1929-1937 L-Head (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto


Model H: 1933–1940 L-Head (2.25″ Bore by 2.25″ Stroke) Type “A” Magneto


Model I: 1938-1949 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model K: 1933-1940 L-Head (2.75″ Bore by 3.25″ Stroke) Type “A” Magneto


Model L: 1930-1932 L-Head (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto


Model M: 1930-1934 L-Head (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto


Model N: 1940-1954 L-Head (2″ Bore by 2″ Stroke) Type “N” Magneto


Model P: 1920 F-Head (2.50″ Bore by 2.50″ Stroke) Type “F” Magneto


Model PB: 1923-1935 F-Head (2.50″ Bore by 2.50″ Stroke) Type “F” Magneto


Model PC-100 (Power Charger with WI Engine): 1941-1943 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model PC-200 (Power Charger with Y Engine): 1936-1938 L-Head (2.25″ Bore by 2.25″ Stroke)


Model PC-300 (Power Charger with I Engine): 1938-1944 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model PC-304 (Power Charger with I Engine): 1943 L-Head (2″ Bore by 1/5″ Stroke) Type “N” Magneto


Model PC-WMB (Power Charger with WMB Engine): 1938-1940 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model PC-WM (Power Charger with WM Engine) 1936-1938 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model Q: 1925-1933 L-Head (2.75″ Bore by 3.25″ Stroke) Type “F” Magneto


Model R: 1929-1933 L-Head (2.75″ Bore by 3.25″ Stroke) Type “F” Magneto


Model S: 1930-1933 L-Head (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto


Model T: 1930-1931 L-Head (2.25″ Bore by 2.25″ Stroke) Type “F” Magneto


Model U: 1940-1945 L-Head (2″ Bore by 2″ Stroke) Type “N” Magneto


Model W: 1931-1933 L-Head (2.75″ Bore by 3.25″ Stroke) Type “F” Magneto


Model WM: 1936-1941 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model WMI: 1936-1941 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model WMG: 1937-1942 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model WMB:  1938-1957 L-Head (2″ Bore by 1 1/2″ Stroke) Type “N” Magneto


Model WI: 1938-1957 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model WBG: L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model Y: 1931-1940 L-Head (2.25″ Bore by 2.25″ Stroke) Type “A” Magneto


Model Z & ZZ: 1931-1949 L-Head (3″ Bore by 3.25″ Stroke) Type “A” Magneto


Model 5: 1950-1957 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model 5S: 1949-1957 L-Head (2″ Bore by 1.5″ Stroke) Type “N” Magneto


Model 6: 1952-1957 L-Head (2″ Bore by 2″ Stroke) Type “N” Magneto


Model 6S: 1949-1957 L-Head (2″ Bore by 2″ Stroke) Type “N” Magneto


©Copyright 2003-2024 By Mike and Jen Murphy