Lincoln L-head V12 engine

The Lincoln L-head V12 engine is a flathead V12 engine produced in two distinct versions and three displacements between 1932 and 1940 by the Ford Motor Company for its Lincoln autombiles. Introduced as a 65° L-head V12 of 447.9 cu in (7.3 L) displacement, it was joined the following year by a smaller, distinctly engineered 67° L-head 381.7 cu in (6.3 L) V12. The newer engine was upsized to 414 cu in (6.8 L) in 1934, and replaced both engines, leaving Lincoln with a sole large displacement V12 going forward.

None of these engines should be confused with the much smaller, much less powerful Lincoln-Zephyr V12, a 267 cubic inch (4.4 L) 75° engine based on the Flathead Ford V8.