Engine Block: Description
The cylinder block (6) is made of heat treated aluminum with cast-in-place iron liners. See Fig 1. The block is a closed deck design with the right bank forward. To provide high rigidity and improved NVH, the block has cast-in contours and ribs, along with powdered metal main caps (2) each with 6 bolts 4 vertical (1) and 2 horizontal (5). The engine is equipped with a windage tray mounted to the main caps.
The block design allows coolant flow between the cylinder bores and an internal coolant by-pass to the thermostat.