Method and apparatus for modifying the combustion chamber of an engine to accept ceramic liners

Abstract From the Canadian patent

A method is disclosed of modifying a conventional internal combustion engine to accept ceramic material. A cast iron extension member is metallurgically joined to the cast iron engine block the, extension member having a wall defining a bore opening aligned with and larger than the bore opening of the engine block. The extension member has a height substantially equal to or greater than the axial stroke of the piston. The diameter of the upper portion of the wall, defining the bore opening in the engine block is, enlarged to define an annular shoulder; the shoulder has an outer surface substantially axially aligned with the wall defining the bore opening in the extension member. A …