1940-1941Base · L6.3958cc
Notes: Cylinder Head Bolt Replacement Recommended Composite
1942Base · L6.4114cc
Notes: Cylinder Head Bolt Replacement Recommended Composite
1946-1949Series Base · L6.4114cc
Notes: Cylinder Head Bolt Replacement Recommended Composite
1950-1951Base · L6.4114cc
Notes: Cylinder Head Bolt Replacement Recommended Composite
1951Deluxe · L6.4114cc
Notes: Cylinder Head Bolt Replacement Recommended Composite
1952-1954Base · L6.4343cc
Notes: Cylinder Head Bolt Replacement Recommended Composite
1952-1954Deluxe · L6.4343cc
Notes: Cylinder Head Bolt Replacement Recommended Composite