However, in 1980, due to ever-increasing emissions restrictions, Pontiac dropped all of its large displacement engines.

Al Menasco was deeply involved with air racing and his engines were popular with racers who needed a small displacement engine.

Scania has continued using a V8 as its largest displacement engine.

The RoboScooter was designed to have similar performance characteristics as gasoline-powered models with 50cc displacement engines.

Any displacement engine may be used as long as the original block casting remains the same.

In most instances, cylinder deactivation is applied to relatively large displacement engines that are particularly inefficient at light load.

Provides large displacement retarding power in small and medium displacement engines.

The smaller displacement engine was not available in any other state.

The idea was to save fuel with a smaller displacement engine, since, theoretically, restrictor size will bring power in any engine to a similar level.

In principle, a positive displacement engine could be used in place of an exhaust turbine to improve low speed performance.