The invention provides for a cylinder bore coating system that includes at least one cylinder bore configured to receive an axially movable piston. The at least one cylinder bore has a recessed area having an axial length and a radial depth. A first coating layer is arranged within at least the recessed area. A second coating layer covers the first coating layer and a portion of the at least one cylinder bore axially spaced from the recessed area.

An oil-less engine with an integrated cylinder head is described. Oil-less engine allows manufacturers to build environmentally safer oil-free engines, with fewer engine parts and at reduced costs of manufacturing. In one embodiment, the present invention an internal combustion engine comprising a reciprocating cradle having pistons. The cradle is assembled with a circular disk that rotates. The rotation of the circular disk causes the pistons and the cradle to reciprocate and thereby causing a combustion with cylinder heads.

An oil-less engine with an integrated cylinder head is described. Oil-less engine allows manufacturers to build environmentally safer oil-free engines, with fewer engine parts and at reduced costs of manufacturing. In one embodiment, the present invention an internal combustion engine comprising a reciprocating cradle having pistons. The cradle is assembled with a circular disk that rotates. The rotation of the circular disk causes the pistons and the cradle to reciprocate and thereby causing a combustion with cylinder heads.