Patent ID: 8720406

Claim:
An engine comprising: a cylinder block that is formed with a plurality of cylinder bores in a line that define a part of combustion chambers, a cylinder head mounted on a top surface of the cylinder block, a sheet metal gasket interposed between the cylinder block and the cylinder head, a first projection projecting outwardly and laterally from a side portion of the cylinder block, the first projection constituting an overhang part that serves as a reinforcing rib, a second projection projecting outwardly and laterally from a side portion of the cylinder head, the first projection and the second projection facing each other along a coupling surface between the cylinder block and the cylinder head, an extension extending from a main body of the sheet metal gasket and located between the first projection and the second projection, a resilient portion which is provided in the extension, formed resiliently in a direction perpendicular to the coupling surface, and compressed between the first projection and the second projection when the cylinder head is fastened on the cylinder block, a flange provided on a rear end surface of the cylinder block so as to reach the coupling surface between the cylinder block and the cylinder head, the flange portion configured to couple to a flange portion of a housing of a transmission, and the overhang part that serves as the reinforcing rib provided on a back portion of the coupling surface, extending forwardly from behind where an uppermost part of the flange portion provided on the rear end surface of the cylinder block connects to a top portion of the flange portion of the transmission housing, the reinforcing rib reinforcing the uppermost part of the flange portion provided on the rear end surface of the cylinder block.