American tuner Hennessey has disclosed plans to offer three upgrade packages for the 2015 Chevrolet Corvette Z06.

The 2015MY Corvette Z06 isn't even on sale yet but Hennessey has already developed power bumps taking the bhp figure in the four figure region. In its standard configuration, the newly developed 6.2-liter V8 LT4 supercharged engine delivers 650 bhp (485 kW) and 650 lb-ft (880 Nm) which is enough for a 0-60 mph (0-96 km/h) run in 2.95 seconds with the optional 8-speed automatic transmission and in 3.2s with the standard 7-speed manual.

For those who are not satisfied with the engine’s output, Hennessey is offering a stage 1 kit bumping the horsepower figure to 750 bhp (559 kW) at 6,300 rpm while stage 2 package raises the number to 850 bhp (634 kW) at 6,500 rpm. There's also the HPE1000 upgrade which lifts power to no less than 1,000 bhp (746 kW) at 6,500 rpm thanks to a 2.9-liter supercharger replacing the 1.7-liter Eaton supercharger of the series Z06.

Stage 2 and stage 3 adopt the larger supercharger and come with a one-year / 12,000-mile warranty while the stage 1 keeps the stock supercharger and has a three-year / 36,000-mile warranty. All of them can be optionally had with carbon fiber door sill plates and H10 monoblock wheel set at an additional cost.

Check out the press release area for technical specifications of all three packages.

Gallery: Hennessey announces 1,000 bhp Chevrolet Corvette Z06

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