Certified power ratings
Chevrolet Announces Certified Power Ratings for the New 2009 Chevy Corvette ZR1
638 Hp From The Supercharged LS9 V-8 Engine
PONTIAC, Mich., 2008-04-25 – When it was introduced at the North American International Auto Show in Detroit earlier this year, the 2009 Chevrolet Corvette ZR1’s power was estimated at 100 horsepower for each of its 6.2 liters of displacement. GM Powertrain has completed SAE certification of the ZR1’s supercharged LS9 V-8 and the results exceed the estimate: 638 horsepower (476 kW) and 604 lb.-ft. of torque (819 Nm).
2009 Chevrolet Corvette ZR1: 638 Hp from the supercharged LS9 V-8 engine

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