Starting in 1999, heavy duty pickup trucks and large SUVs from Chevrolet and GMC would get a new LS-based engine, the LQ4. The 6.0-liter LQ4, commonly known as the Vortec 6000, was a version of ...
Chevrolet's largest displacement and final, big block engine for production vehicles was the 496-cubic-inch 8.1L Vortec ... Deluxe with 605 horsepower at 6,000 rpm and 580 lb-ft of torque at ...