LS9 V8 Supercharged Aluminum-Block V8 Engine
The ZR1 (very limited availability) is powered by a 6.2 Liter aluminum-block V8 boosted by an Eaton^® TVS™ (Twin Vortices Series) supercharger for a total power output of 638 hp at 6500 rpm and 604 lb.-ft. of torque at 3800 rpm. It is the most powerful motor ever to occupy the engine bay of a General Motors production car.

The supercharger features four lobes instead of the usual three for higher power and efficiency. It also features an intercooler to cool down the air/fuel charge for more power. In addition, nozzles squirt cooling oil into the underside of each piston.

The engine also features a dual-pressure fuel injection system for peak performance during multiple operating conditions.

Like the LS7 engine in the Z06, the LS9 features titanium connecting rods and exhaust valves as well as a dry-sump oil system with a larger capacity reservoir − now 10.5 quarts. The LS9 is hand-assembled at the GM Performance Build Center in Wixom, Mich.

• Dry-sump oil system
• Brembo® Carbon Ceramic Brakes
• Visible carbon-fiber roof, roof bow, rocker extensions and front air splitter
• Carbon-fiber domed hood with supercharger window
• Unique carbon fiber dual cove front fender
• Double-wishbone suspension
• Magnetic Selective Ride Control
• Short-throw six-speed manual transmission
• Xenon high-intensity discharge headlamps
• NEW variable-ratio steering
• 20-spoke Sterling Silver colored aluminum wheels
• Michelin Pilot Sport PS2 ZP tires
• Keyless access with push-button start
• Dual−zone air conditioning
• Driver Information Center (DIC) (includes Tire Pressure Monitor)
• Auxiliary audio input jack
• Active Handling System with four-wheel ABS and Traction Control
• XM Radio(1) with three trial months
• Frontal air bags(2) with Passenger Sensing System
• OnStar(3) with one-year Safe & Sound Plan
• Extended Mobility Tires (EMT)
• Head-Up Display (HUD)
• Leather seating surfaces with six-way power driver seat
• Power-telescoping steering column
• Dual-zone electronic climate control
• Steering wheel-mounted audio controls