Cylinder head for a water-cooled multi-cylinder internal combustion engine

The present invention the cylinder head cooling space (2) which has the inflow for a refrigerant, and an outlet head (4, 6) for two air intakes and exhaust valves for every cylinder, And it is related with the cylinder head for the internal-combustion engine of the many cylinders of water-cooling which has a housing-openings part (16) for the spark plug which was related with the cylinder head cooling space (2) of a cylinder, and was 配設 (ed) by the center. In the inflow side (inflow mouths 4 and 6) in cylinder head cooling space (2), In the edge domain of both by the side of inflow, it is proposed to the main cooling style (Q, Q) passing between both of exhaust valves (notch parts 12 and 14) in the direction of the housing-openings part (16) for a spark plug that two subcooling styles (Q, Q) are prepared.