The biggest 3-cylinder diesel ever made was made for the Alfa Romeo 33 in 1986, and for all the wrong reasons. The VM Motori HR 392 OHV was born because the gas engine in the Alfa 33 was a flat ...

The Detroit Diesel-built engine was an overhead valve (OHV) pushrod engine featuring a cast-iron engine block and cylinder heads with a bore and stroke of 3.98 inches and 3.82 inches, respectively.

Volkswagen has chosen the 31st International Vienna Motor Symposium to unveil its latest TDI engine, the 1.2-liter three-cylinder unit ... new 1.2-liter TDI with 3 cylinders.