Patent ID: 6988480

Claim:
A cylinder block for an internal combustion engine, comprising: at least one cylinder bore; a coolant jacket at least partially surrounding the at least one cylinder bore; a top deck; and first and second longitudinally opposed end walls, each of the first and second end walls having a substantially planar end wall surface arranged on respective first and second planes; wherein the coolant jacket includes a first portion located between the first end wall and the at least one cylinder bore, and a second portion located between the second end wall and the at least one cylinder bore; and wherein at least one of the first and second end walls includes a projecting portion adjacent the top deck which projects longitudinally beyond the first or second plane, the projecting portion having a first vertical depth, and at least one of the first and second portions of the coolant jacket having a second vertical depth, and wherein the first vertical depth of the projecting portion does not substantially exceed the second vertical depth of the coolant jacket.