MerCruiser SternDrives    
Small-Block V-8 - 350 MAG MPI 

Gas Carbureted

• 3.0L
• 4.3L
• 5.0L
• 5.7L

Gas Fuel Injected

• 4.3L EFI
• 5.0L EFI
• 350 MAG MPI
• 350 MAG MPI Horizon
• MX 6.2MPI
• MX 6.2MPI Horizon
• 496 MAG
• 496 MAG HO

Diesel

• D1.7L DTI
• 2.8L D-Tronic
• 4.2L-LD
• 4.2L
• 4.2L D-Tronic
• 7.3L D-Tronic-LD
• 7.3L D-Tronic

Performance Engines

• HP500 Bulldog™
• Scorpion 377
• HP500 EFI
• HP 575 SCI
• HP 900SC Dry Sump

Big-time performance in a small-block V-8. That's what you get with the 350 MAG MPI. You'll enjoy outstanding top-end throttle response, easy starts and excellent day-to-day operation, compliments of the MEFI 3 Electronic Control Module with multiport fuel injection.

Small-Block V-8 - 350 MAG MPI

350 MAG MPI Specifications

• Propshaft Horsepower: 300 (224 kW)
• Displacement (Liter/CID): 5.7L/350
• Cylinders: V-8
• Bore & Stroke (in/mm): 4.00 x 3.48/101 x 88
• Compression Ratio: 9.4:1
• Fuel System: MPI
• Full Throttle RPM Range: 4600-5000
• Ignition Type: Digital
• Alternator (amps/watts): 65/917
• Length (in/cm): 37/94
• Width (in/cm): 29/74
• Height (in/cm): 22/56
• Weight (lbs/kg) - Alpha: 952/432
• Weight (lbs/kg) - Bravo One: 1025/465
• Weight (lbs/kg) - Bravo Two: 1037/471
• Weight (lbs/kg) - Bravo Three: 1046/475

Transmission Ratios

• Gear Ratio - Alpha Drive (primary/optional/high altitude): 1.47/-/1.62
• Gear Ratio - Bravo One (primary/optional/high altitude): 1.5/1.36/1.65
• Gear Ratio - Bravo Two (primary/optional/high altitude): 2.0/1.81/2.2
• Gear Ratio - Bravo Three (primary/optional/high altude): 2.0/1.81/2.2

Standard Features

• Audio warning system
• Ceramic-, EDP- coated and painted exhaust elbows
• Painted cast-iron exhaust manifolds
• Knock-control sensor
• MerCathode® (standard on all Bravo drives)
• Power steering
• Quick-drain oil system
• Remote oil filter
• Serpentine belt
• 90 mm throttle body
• Water-cooled fuel system
• Multipoint manual water drain system
• Water/fuel separator

Optional Features

• Closed-cooling (kit)
• Compact hydraulic steering
• 3" risers
• Mercathode (optional kit on Alpha drive)

Boating Benefits

• Multiport injection system that provides dependable turnkey starts, optimized fuel/air distribution, digital electronic spark advance, and exceptional throttle response for unmatched performance.
• Exclusive quick oil drain system that eliminates the need for a pump, simplifying routine maintenance.
• Ceramic- and EDP-coated exhaust elbows for outstanding corrosion resistance.
• Multipoint manual water drain system, which makes winterizing easy.
• Exclusive remote oil filter located atop the engine, simplifying routine maintenance.
• Water-cooled and insulated fuel system that keeps fuel temperatures at optimum levels while reducing the potential for vapor lock.
• 70-amp alternator to handle the demands of today’s state-of-the-art electronic components.
• Exclusive audio alarm system that warns you of low oil pressure, high water temperature and excessive transmission temperature.
• Water-separating fuel filter that prevents water from entering the fuel system.
• Exclusive drive lube monitor conveniently located atop the engine for easy access.
• Compact hydraulic steering available for pontoon applications, which is offered as a factory-installed option on the Alpha drive packages.
• Exclusive Mercury MerCruiser® service dealer network