This document describes a six-stroke engine designed by Malcolm Beare that combines aspects of two-stroke and four-stroke engines. It works by using a piston in the cylinder head that intakes and exhausts like a two-stroke while the bottom remains a conventional four-stroke. This hybrid design increases torque by 35% and efficiency, while reducing weight and parts compared to a four-stroke. It provides thermodynamic advantages such as greater expansion and slower piston acceleration. The six-stroke engine could replace conventional heads on existing engines.