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Derived from General Motors’ Gen III and Gen IV small block V8 systems, the LQ9 was introduced in the early 2000s. It was specifically designed for a range of vehicles, including the GMC Sierra Denali and the Chevrolet Silverado SS. The engine boasts a 6.0-liter displacement and is primarily recognized for its iron block and aluminum cylinder heads, a combination that contributes to both strength and weight balance.


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