GM releases official power rating for 2009 ZR-1
The 2009 Corvette ZR-1′s Supercharged LS9 6.2 (376 cubic inches) liter V-8 will have an output of 638 horsepower, 604 ft lbs of peak torque and exceed a top speed of 200 miles per hour. This will be the first factory built Vette with forced induction, based on the spec sheets that means 103 hp per liter, or [...]
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