Now we have the official specifications announced by Chevrolet itself.

The vehicle hits a total of 460 horsepower at 6,000 rpm and 465 pound-feet of torque at 4,600 rpm. The Z51 performance package includes Magnetic Ride Control and Performance Traction.
Here you have every detail specified:

Exterior Specifications:
Measurement Specification

Wheelbase 106.7 In.
Overall Length 177 In.
Overall Width 73.9 In.
Overall Height 48.6 In.
Weight Distribution (% Front / Rear) 50 / 50

Standard Exterior Features

 Carbon-fiber hood
 Carbon-fiber removable roof panel
 Aluminum frame
 Advanced, high-intensity discharge (HID) and light-emitting diode (LED) lighting

Standard Interior Features

 Dual, eight-inch configurable driver/infotainment screens
 Next-generation Chevrolet MyLink infotainment system and rear vision camera
 Bose nine-speaker audio system with SiriusXM Satellite radio, Bluetooth connectivity, USB and SD card and auxiliary input jack
 Keyless access
 Push-button start
 Power tilt/telescope steering wheel
 Lightweight magnesium seat frames
 Eight-way power seat adjustment

 Drivetrain Specifications:

Displacement 6.2-Liters
Bore & Stroke 4.06 In. X 3.62 In.
Block Material Cast Aluminum
Cylinder Head Material Cast Aluminum
Valvetrain Overhead Valve, Two Valves Per Cylinder
Fuel Delivery Direct Injection
Compression Ratio 11.5:1
Horsepower 455 (460 With Perf. Exhaust)
Torque (Lb-Ft) 460 (465 With Perf. Exhaust)
Fuel Economy (City/Highway/Combined) (7-Speed Manual) 17 Mpg/28-30 Mpg/TBA
Fuel Economy (City/Highway/Combined) (6-Speed Auto) TBA/TBA/TBA
 Performance Figures w/ Z51 Package and MRC with PTM:
Acceleration From 0-60 Mph 3.8 Seconds
¼-Mile Acceleration 12 Seconds @ 119 Mph

Suspension Specifications

Front Short/Long Arm ( SLA) Double Wishbone, Cast Aluminum Upper And Lower Control Arms, Transverse-Mounted Composite Spring, Monotube Shock Absorber
Rear Short/Long Arm ( SLA) Double Wishbone, Cast Aluminum Upper And Lower Control Arms, Transverse-Mounted Composite Spring, Monotube Shock Absorber
Active Handling Magnetic Selective Ride Control (Avail. With Z51)
Traction Control StabiliTrak, Electronic Stability Control

Brake Specifications

Type Brembo Four-Piston Fixed Front And Rear Calipers
Rotor Diameter Front 12.6 In. / Rear 13.3 In.
Suspension and Braking Performance w/ Z51 Package and MRC with PTM
Braking Distance From 60 To 0 Mh 107 Feet
Maximum Lateral Acceleration 1.03 G
VIR ‘Grand Course’ Lap 2:51.78

Pricing Details

2014 Corvette Stingray Base $51,995
2014 Corvette Stingray Z51 $54,795
2014 Corvette Stingray 3LT $60,000

Option Pricing

Competition Sports Seats $2,495
Exposed-Carbon-Fiber Roof $1,995
Magnetic Ride Control With Performance Traction Management $1,795
Dual-Mode Exhaust System $1,195
Carbon-Fiber Interior Trim $995
Sueded, Microfiber-Wrapped Upper Interior Trim $995
Red Calipers $595
Black-Painted Wheels $495