The increasing demands for low emissions and low fuel consumption in m odern combustion engines requires improved methods for combustion process. The Beare Head is a new type of six-stroke engine head design known as the �Beare Head� after its designer,Malcolm Beare. T he Beare Head uses a piston and ports very much like a two stroke engine to replace the overhead valve system t hat is found in four stroke engines today. The four-stroke block,piston and crankshaft remain unaltered. This combinat ion of two stroke and four-stroke technology has given the technology its name the �six stroke engi ne�. Six Stroke engine,the name itself indicates a cycle of six strokes out of which two are useful power strokes. According to its mechanical design,the six-stroke engine with external and internal combustion and double fl ow is similar to the actual internal reciprocating combustion engine. However,it differentiates itsel f entirely,due to its thermodynamic cycle and a modified cylinder head with two supplementary chambers:combustion a nd an air heating chamber,both independent from the cylinder. In this the cylinder and the combustion cham ber are separated which gives more freedom for design analysis. Several advantages result from this,one very important being the increase in thermal efficiency. https://www.ijiert.org/paper-details?paper_id=140100