Rated Horsepower 450 PS 336 kW Max RPM at Full Throttle 5800-6400 Cylinders/Engine Configuration V8 [64 degree] with 32-valve Dual Overhead Cam [DOHC] Displacement (Cubic Inch, CID) / (Liters, L) 279 CID / 4.6L Induction System Supercharged with Charge Air Cooling and Electronic Boost Control Midsection Design Advanced Midsection with heavy-duty guide plates and stiffened engine mounts for enhanced high-speed handling Fuel System Electronic Fuel Injection (EFI) Computer Controlled Fuel Requirements Unleaded Regular 89 Octane Minimum (R+M/2) or 95 RON 10% Ethanol Maximum Ignition System SmartCraft PCM 112 Digital Inductive Charging System 115-amp (1449 Watt) Starting SmartStart Electric Exhaust System Selectable Cooling System Water-cooled with thermostat control Lubrication System Integrated wet sump with oil cooler Digital Throttle & Shift Gearcase 450R Sport Master Electro-Hydraulic Power Steering with Integral Steering Cylinder