Mercruiser Horizon 5.7 Inboard – MERCRUISER INBOARDS represent the industry’s best when it comes to delivering reliable, long-lasting and easy-to-own power. From our Horizon petrol inboards to our Mercury Diesel products. MerCruiser inboards are built using the highest-quality materials such as stainless steel, the most reliable systems such as closed-cooling for added corosion protection and the best warranty coverage on the water. All to make your ownership experience enjoyable, simple and worry-free.
Power | 300HP (224 kW) |
Full Throttle Range | 4600 -5000 RPM |
Displacement | 350 CID (5.7L) |
Engine Type | V8 |
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 (PCM 555 w/DTS) |
Fuel Delivery System | Gen III Cool Fuel |
Fuel Injection System | Multi-Point Electronic Fuel Injection (Sequential Fuel Injection w/DTS) |
Induction System | 2-pieceLong Runner intake with 75mm Throttle Body (80mm w/DTS) |
Ignition System | Crank-fired High Voltage Switch w/Knock Control and Platinum Plugs |
Charging System | 65 Amp/917 Watt Alternator |
Water Drain System | Single Point Air-Actuated |
Exhaust System | Exhaust System Iron Manifold with EDP-coated Dry-joint Exhaust Elbow |
Cooling System | Closed Cooling, Long Life 5-Year Anti-Freeze, Brass Sea Water Pump |
Accessory Drive System | Serpentine Belt |
Recommended Engine Oil | MerCruiser Full Synthetic Engine Oil – SAE 20W-40 |
Engine Guardian System | Low Oil Pressure, High Coolant Temperature, Transmission Temperature, Low Sea Water Pressure, Low Voltage, Over-rev control, Knock Control |
Velvet Drive 5000A | 1.25, 1.5, 2.0, 2.5, 2.8:1 |
Velvet Drive 5000V | 1.5, 2.0, 2.5:1 |
Velvet Drive 71C | 1.0:1 |
Velvet Drive 72C | 1.0:1 |
ZF 63A (Available w/DTS) | 1.5, 2.0, 2.5, 2.7:1 |
ZF 63 IV (Available w/DTS) | 1.5, 2.0, 2.5:1 |
Dimensions (LxWxH) in | 43x 30 x 22 |
Dimensions (LxWxH) mm | 1092 x 740 x 559 |
Weight w/ Velvet Drive | 948 (lbs.) / 431 (kg) |
Full Closed Cooling System | Standard |
Digital Throttle and Shift | Standard |