Mercury Mercruiser Engines

Marine Tow Sports Inboard 5.7 MPI - 300 hp

The 5.7 MPI Tow Sports inboard is built to deliver knock-out torque with uncompromised reliability. Like all the Multiport Injection (MPI) engines from MerCruiser, the 5.7 MPI is designed to tow skiers and riders all day long on easy–to-find and affordable 87 octane fuel. The 5.7 MPI also delivers a host of friendly features such as remote oil filters, easy oil drain systems and optional single-point water drain systems to maximize your time on and off the water. In addition, the 5.7 MPI is available in an EC, or Emissions Control version, certified to the state of California 4-Star Super-Ultra Low Emissions level. EC models utilize state-of-the-art marine-specific catalytic converters and an ultra-powerful ignition and fuel control system that monitors vital engine systems and environmental inputs, adjusting to consistently produce maximum power with minimum exhaust emissions.
RELIABILITY ECM 555 fuel and ignition system along with platinum-tipped spark plugs ensure reliable starts and outstanding performance, year after year Dry-joint exhaust eliminates the chance for water to enter engine through leaky gaskets Water-separating fuel filter helps protect fuel system and engine against damage Extra high alternator output at idle to keep batteries going with large amps and water pumps Proven GM cast iron block V8 power for years of reliable operation EDP-coated exhaust elbows resist temperature and corrosion for long life Brass Sea Water pump housing improves life and better resists damage from running dry PERFORMANCE Two-piece, long-runner intake manifold design improves low and mid-range torque for better acceleration and handling heavy loads HVS Ignition with knock control maximizes power and protects against low quality fuels Low restriction anodized flame arrestor for added horsepower and torque A variety of available high quality hydraulic transmissions allow boat manufacturers to precisely match hull characteristics and boat weight to optimize performance EASY OWNERSHIP 3-year/300 hour maintenance interval on many periodic service items saves time and money Color-coded service points makes checking fluid levels simple and straightforward Operates on easy to find, less expensive 87 octane fuel No tools required to drain water from engine with blue drain plugs Special ball-joint throttle and shift linkage for easy maintenance and custom adjustments made simple Easy Oil Drain system coupled with convenient remote oil filter location makes oil changes cleaner and makes periodic service simple and less work TECHNOLOGY Multi-Port Fuel Injection provides easy starts, cold or hot, and automatically adjusts for changes in temperature, weather, or altitude for terrific performance in any environment Helm-mounted Audio Warning System works with Engine Guardian to monitor and protect against engine or transmission damage if monitored temperatures or pressures vary from normal range Large 65 Amp alternator provides plenty of power for popular onboard electronics, even at low RPM MPI engines are designed to display engine information on your choice of analog or SmartCraft digitally-driven gages and displays Power 300 (221 kW) Full Throttle Range 4600 - 5000 RPM Displacement 350 CID (5.7L) Engine Type V8 SmartCraft® Yes Bore & Stroke 4.00" X 3.48" (101mm X 88mm) Compression Ratio 9.4:1 Fuel Requirement 87 Octane (R+M)/2 Engine Control System ECM 555 with SmartCraft CAN Capability Fuel Delivery System Gen II Cool Fuel with Boost Pump Fuel Injection System Multi-Point Electronic Fuel Injection Induction System 2-piece long runner intake with 75mm Throttle Body Ignition System Crank-fired High Voltage Switch w/Knock Control and Platinum Plugs Charging System 65 Amp/917 Watt Alternator w/Special Pulley Delivering 24 Amps @ Idle Water Drain System Optional Exhaust System Iron Manifold with Ceramic Coated Dry-joint Exhaust Elbow Cooling System Thermostatically Controlled, Raw Water, Brass Sea Water Pump Accessory Drive System Serpentine Belt Recommended Engine Oil Mercury MerCruiser Full-Synthetic Engine Oil, 20W-40, NMMC FC-W rated Engine Guardian System Low Oil Pressure, High Coolant Temperature, Transmission Temperature, Low Sea Water Pressure, Low Voltage, Over-rev control, Knock Control Velvet Drive 71C 1.0:1 ZF 45 C 1.0:1 Velvet Drive 72C 1.5:1 Walter V-Drive w/71C 1.46:1 Walter V-Drive w/45C 1.46:1 Dimensions (LxWxH) in 43x30x22 Dimensions (LxWxH) mm 1092x740x559 Weight w/ Velvet Drive (lbs./kg) 813/369

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