Spec Sheet: ’07 and ’08 ZR1 Convertibles
Owners Ray Craig Jr. and Ray Craig Sr.
Block Stock LS9 aluminum
Displacement 378.3 ci
Heads Stock LS9 aluminum
Valves Stock 2.16 titanium intake/1.59 exhaust
Camshaft 21st Century 21CMC-30 hydraulic roller (227/239-deg duration, 0.629/0.623-in lift, 114-deg LSA), LPE dual valvesprings and titanium retainers
Rocker Arms Stock 1.7 ratio
Pistons Stock LS9 forged aluminum
Rods Stock LS9 titanium
Crankshaft Stock LS9 forged steel
Throttle Body Stock LS9 87mm
Fuel Injectors FAST 85-lb/hr
Fuel Pump Stock LS9 and Kenne-Bell Boost-a-Pump
Ignition Stock coil-on-plug, NGK TR-6 spark plugs
Power Adder Stock GM/Eaton TVS R2300 supercharger
Maximum Boost 14 psi
Intercooler Stock GM ZR1 and Spearco custom front-mount
Exhaust System American Racing 1 7/8-in stainless-steel headers, 3-in X center section, high-flow cats, and B&B Fusion 3-in after-cat exhaust
Transmission Stock TR 6060 six-speed manual
Clutch Stock ZR1 twin-disc with LPE ZR1 billet-steel flywheel
Front Suspension Stock with GM Magnetic Ride Control
Rear Suspension Stock with GM Magnetic Ride Control
Rearend Stock with 3.42 gears and HD axle shafts
Brakes Stock Z06; six-piston front calipers with 14.0-in rotors, four-piston rear calipers with 13.4-in rotors
Wheels Stock ZR1 chrome; 19x10 (front), 20x12 (rear)
Tires Michelin Pilot Sport PS2; 285/30ZR19 (front), 335/25ZR20 (rear)
Fuel Octane 93
Weight 3,430 lbs
Current Mileage 10,000/16,000