From Autoblog.com:
"At this point, specifications are still preliminary, but Chevrolet is estimating that its supercharged and intercooled 6.2-liter LSA V8 engine will put out around 550 horsepower and 550 pound-feet of torque. Those ponies will be sent to the rear wheels via a six-speed manual transmission using a dual-disc clutch that's necessary to properly harness all those horses. There's also a dual-mode exhaust system that alters the sound level and character in response to engine rpm."
Here is the link
http://www.autoblog.com/2011/02/09/2...011/#continued