The Valiant also featured an all-new Straight-6, the famous Chrysler Slant 6 engine, which had its inline cylinders canted 30 to one side.

The Valiant featured an all-new 6-cylinder engine, the famous Slant-6, which had its inline cylinders canted 30 to one side.

Three versions of the inline six cylinder Holden Red motor were available.

This firing order mimics that of a V4 engine while maintaining the desirable engine packaging of a traditional inline four cylinder.

It featured a unique mid-engined platform, where the inline four cylinder gasoline-powered engine was installed almost flat (at a 75-degree angle), beneath the front seats.

The Curtiss Model K was an early aircraft piston engine with four inline cylinders.

Their first introduction was "Micro Privilege" which had 1000cc gasoline engine with inline 4 cylinders.

The G16 is an inline 4 cylinder displacing 1.6 L (1590 cc).

The Wright Vertical 4 engine was an early aircraft piston engine with four inline cylinders.

An inline four cylinder or V6 engine without a balance shaft will experience secondary dynamic imbalance, resulting in engine vibration.