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General Motors Powertrain Group (GMPTG) has developed an all new small block V8 engine, designated LS1, for introduction into the 1997 Corvette. This engine was designed to meet both customer requirements and competitive challenges while also meeting the ever increasing legislated requirements of emissions and fuel economy. This 5.7L V8 provides increased power and torque while delivering higher fuel economy. In addition, improvements in both QRD and NVH characteristics were made while meeting packaging constraints and achieving significant mass reductions.

To satisfy the performance demands of the mid-Size passenger car market, General Motors has introduced a new 60° V6 engine called the Twin Dual Cam V6. This engine, with a displacement of 3.4 liters, has many modern technology features such as: four valves per cylinder; direct acting overhead camshafts; compact, pent-roof combustion chamber with a centrally located spark plug; multi-point electronic fuel injection with dual spray injectors; and several noise attenuation features. This paper describes the technical features of the engine and the manufacturing techniques implemented so as to assure high quality. Also included is a description of the operating philosophies practiced throughout the project with the use of Quality Function Deployment, Product Development Teams and Simultaneous Engineering process.