🏷️ Basic Information Identification Make: MerCruiser Model: 496CID / 8.1L Gasoline Engine Year: Not Specified Generation: Not Specified Application Marine Application: Boat Engines (Sterndrive and Inboard) 📋 Manual Details Document Info Manual Type: Factory Service Manual Language: English Format: PDF Download Page Count: Not Specified Coverage Sterndrive Models: 496 Mag HO (S/N: 0M000000 & Up), 496 Mag (S/N: 0M000000 & Up) Inboard Models: 8.1S HO (S/N: 0M000000 & Up), 8.1S Horizon (S/N: 0M000000 & Up) Content Sections Sections: • Important Information • Removal and Installation • Engine • Electrical System • Fuel System • Cooling System • Exhaust System • Drives • Power Steering Features Illustrations: Yes Photos: Yes ⚙️ Engine Specifications Engine Description Engine Type: Gasoline Displacement: 496 CID / 8.1 Liters Engine Family: Big Block V8 Fuel System: Electronic Fuel Injection (EFI) Ignition System: Specifics not detailed in product description Cooling System: Closed Cooling System (for specific models) Power: Not Specified (Model dependent, e.g., HO) Engine Components Exhaust System: Manifolds and Elbows, Collectors Power Steering: Pump 🔧 Transmission Transmission Details Type: Sterndrive (MCM) or Inboard (MIE) Associated Transmissions: Velvet Drive 5000 Series, Hurth Transmission Gears: Not Specified 🔧 Maintenance Maintenance Schedule Service Interval: Detailed in manual Oil Capacity: Not Specified Maintenance Procedures: Disassembly, Assembly, Inspection, Adjustment