Hyundai Sigma engine

The Hyundai Sigma engine is the name Hyundai Motor Company gave to the Mitsubishi 6G7 engine when it was manufactured in South Korea. It is a series of V6 piston engines that began life under the simple name V6, with displacement ranging from 2.5 to 3.5 litres (2,497 to 3,497 cc). The 2.5 litre G6AV, the 3.0 litre G6AT and G6CT, and the 3.5 litre G6AU and G6CU were fitted to large Hyundai cars and sport utility vehicles such as the Dynasty, Grandeur, Equus, Galloper, Santa Fe and Terracan, and to Kia models including the Opirus, Sedona and Sorento. The 3.5 litre has a cast iron block with aluminium double overhead camshaft heads, multi-port fuel injection and four valves per cylinder, and is designed to run on regular unleaded gasoline rather than premium fuel. An LPG version of the 3.0 litre, the L6AT, was also built.