Patent ID: 8813718

Claim:
An internal combustion engine comprising: a combustion chamber comprising: at least one cylinder; at least one piston defining a piston top; at least one cylinder head defining at least one intake port and at least one exhaust port the cylinder head further defining a squish band and including a plurality of flow grooves generally located about the perimeter of the squish band; at least one intake valve corresponding to the at least one intake port; and at least one exhaust valve corresponding to the at least one exhaust port; an intake manifold adapted to supply air to the combustion chamber; a fuel supplier comprising one or more fuel injectors or one or more carburetors adapted to supply fuel to the combustion chamber; and an exhaust manifold adapted to direct a flow of exhaust gas from the combustion chamber, wherein the combustion chamber includes a textured inner surface provided on at least one of: the at least one cylinder head; the at least one intake valve; or the at least one exhaust valve, the textured inner surface comprising a plurality of shapes selected from indentations, protrusions, or combinations thereof, and the shapes having a width from about 1.5 to about 9.5 mm, and a depth or height from about 1.5 to about 6.5 mm.