How much horsepower does an LS1 have?


Quick Answer

The LS1 engine was first released in the 1997 Chevy Corvette and rates 345 horsepower, according to Hot Rod Magazine. In 1998, General Motors placed the LS1 engine in its F-Body cars, the Chevy Camaro and Pontiac Trans Am. With the LS1, these cars rate from 305 to 325 horsepower.

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Full Answer

The LS1 engine design is quite different from previous small-block engines. The engine block has an improved structure with lightweight aluminum parts, and all gaskets are single-use compression type in order to maximize sealing capabilities. In 2001, the intake and exhaust manifolds were also improved, which increased the engine's power by approximately five horsepower. The LS1 was eventually replaced by the higher-output LS6 engine in 2002.

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