Larger inline-four engines are used in industrial applications , such as in small trucks and tractors , are often found with displacements up to about 4.6 L. Diesel engines for stationary , marine and locomotive use ( which run at low speeds ) are made in much larger sizes .
Larger four-cylinder engines are used in industrial applications , are often made with displacements up to about 4.6 L. Displacement can also be very small .