3rd Generation LS:

The LS1 and LS6 engines belong to the third generation of GM’s LS engine family. This generation introduced a departure from traditional V8 design by employing lightweight materials such as aluminum for both the block and cylinder heads. These engines are characterized by their compact size, efficient design, and impressive power output. The LS1, introduced in 1997, was the cornerstone of this generation, featuring a 5.7-liter displacement and serving as a basis for subsequent iterations. The LS6, a high-performance variant of the LS1, followed in 2001 with enhanced components and increased power. Both engines showcase the advancements of the Gen 3 LS family in terms of performance, technology, and adaptability, making them sought-after choices for engine swaps and performance enthusiasts.