Engine

An engine, comprising:

• a cylinder block comprising a plurality of cylinders and a top surface positioned at an upper extent of the plurality of cylinders, the cylinder block extending along a longitudinal axis;
• a first channel positioned within the cylinder block, the first channel configured to surround at least a portion of the plurality of cylinders;
• a water pump fluidly coupled to the first channel, the water pump configured to drive cooling fluid into the first channel;
• a first number of apertures in the top surface configured to communicate with the first channel, the first number of apertures comprising a first aperture and a second aperture;
• a cylinder head coupled to the cylinder block, the cylinder head comprising:
• at least one exhaust valve and at least one intake valve;
• a third aperture configured to align with the first aperture and a fourth aperture configured to align with the second aperture;
• a first core fluidly coupled to the third aperture, the first core extending along a first side of the at least one exhaust valve;
• a second core fluidly coupled to the fourth aperture, the second core extending along a second side of the at least one exhaust valve;
• and
• wherein the first core and the second core are positioned on a first side of the longitudinal axis.

An engine, comprising:

• a cylinder block comprising a plurality of cylinders and a top surface positioned at an upper extent of the plurality of cylinders;
• a first channel positioned within the cylinder block, the first channel configured to surround at least a portion of the plurality of cylinders;
• a water pump fluidly coupled to the first channel, the water pump configured to drive cooling fluid into the first channel;
• a first aperture and a second aperture positioned in the top surface configured to communicate with the first channel;
• and
• a cylinder head coupled to the cylinder block, the cylinder head comprises a first cooling fluid path, a second cooling fluid path, and an outlet, the first cooling fluid path comprises a third aperture fluidly coupled to the first aperture and a first core, the second cooling fluid path comprises a fourth aperture fluidly coupled to the second aperture and a second core, and each of the first core and the second core is fluidly coupled to the outlet.