Engine has aluminum cylinder block, sinter-forged con rods.(METALS)

All engines in the global V-6 engine family from General Motors Corp., Detroit, Mich., include a lightweight aluminum cylinder block with iron cylinder sleeves, an aluminum structural oil pan, and aluminum cylinder heads with four valves per cylinder. The 2.8L V-6 Turbo builds on those strengths with components and technology developed specifically for the turbo system, including unique cylinder heads made from 356T-6 ...