December 21, 2007

2009 Corvette ZR1 will be powered by GM’s most powerful production engine ever

The 2009 Corvette's LS9 engine
The 2009 Corvette’s LS9 engine. Click image to enlarge

Pontiac, Michigan – General Motors has announced that the 2009 Chevrolet Corvette ZR1, arriving next summer, will be the company’s most powerful and fastest production car ever produced. The new model will use a supercharged 6.2-litre LS9 small-block V8 engine producing 620 horsepower and approximately 595 lb-ft of torque.

“When you experience the LS9 in the Corvette ZR1, the terms performance and refinement take on a new meaning,” said Tom Stephens, group vice-president for GM Powertrain and Quality. “The LS9 demonstrates an outstanding performance range, with smooth driveability at low speeds, and surprisingly fierce performance when the customer wants more power.”

The Corvette will use a new, large positive-displacement Roots-type supercharger with unique four-lobe design, developed for the engine by Eaton. The LS9 represents the first of several new, supercharged small-block engines that will be introduced in GM vehicles in the near future, each using superchargers of similar design.

“The small-block V8 once again demonstrates its boundless horsepower potential, versatile design and an architecture with proven quality, durability and reliability,” Stephens said. “We haven’t realized the small-block’s performance potential.”

The LS9 is assembled by hand at GM’s Performance Build Center in Wixom, Michigan, which also builds the Corvette Z06 LS7 and other high-performance GM production engines.

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