The engine's block and cylinder head are separated by a gasket. Its job is to keep unwanted fluids out of the cylinders and keep the compression levels high. My personal goal for this project is to improve upon the current gasket material and style for four-cylinder engines. Multiple-Layer System (MLS) Asbestos with steel (usually three layers of steel) - MLS gaskets are standard on most newer head engines. Rubber-like coatings, such as Viton, are often used to bind the contact sides to the cylinder block and cylinder head, while the thicker central layer is left uncoated. Gasket producers are looking for alternatives to asbestos because to the health risks posed by breathing in the mineral's tiny fibres. The cylinder head gasket of the 4-stroke engine will undergo a thermal analysis test.