Vw engine case. The crank shaft, connecting rods, fuel pump and flywheel are still connected. The motor came from a 1968 beetle and was a 1500 cc. It can be built as a 1600 cc as the will accept the pistons and cylinders without machining. Call if you have any questions in regards to this motor. Please call between the hours of 8:30am until 10:00pm.