The Ford Motor Company produced straight-six engines from 1906 until 1908 and from 1941 until 2016. In 1906, the first Ford straight-six was introduced in the Model K. The next was introduced in the 1941 Ford. Ford continued producing straight-six engines for use in its North American vehicles until 1996, when they were discontinued in favor of more compact V6 designs.
The 223 cu in version in a 1959 Ford Fairlane
Ford straight-six engine
Ford straight-six engine
A 240 Six intended for a 1969 F-100
The inline-six engine is a piston engine with six cylinders arranged in a straight line along the crankshaft. A straight-six engine has perfect primary and secondary engine balance, resulting in fewer vibrations than other designs of six or fewer cylinders.
Engine block of a BMW M20 straight-six engine (top view)
3890-litre MAN B&W 6S60MC marine diesel engine
Crankshaft with four main bearings
1978-1981 BMW M88 engine