A valve actuation system for an engine is provided. The valve actuation
system can include two or more engine cylinders, each cylinder having at
least one intake valve configured to control air-flow into each of the
two or more cylinders and at least one exhaust valve configured to
control the flow of exhaust gases out of each of the two or more
cylinders. The at least one first cylinder includes an exhaust cam lobe
configured to control the valve timing of an exhaust valve of the at
least one first cylinder and to cause an exhaust valve of a second
cylinder to open during an expansion stroke of the second cylinder.