Tow Sports Inboards
| Power | 260 HP (191 kW) |
|---|---|
| Full Throttle Range | 4400-4800 |
| 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 |
| Fuel System | 2V Carb with Turn Key Start & Electric Fuel Pump |
| Induction System | Dual Plane Iron Intake Manifold |
| Ignition System | Thunderbolt V with Knock Control |
| Charging System | 65 Amp/917 Watt Alternator |
| Water Drain System | Multi Point Drain - Hand Removable Blue Drain Plugs |
| Exhaust System | Iron Manifold with Ceramic Coated Dry-joint Exhaust Elbow |
| Cooling System | Thermostatically Controlled, Raw Water |
| 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, High Transmission Temperature |
| Velvet Drive 71C | 1.0:1 |
| ZF 45 C | 1.0:1 |
| Dimensions (LxWxH) in | 43x 30 x 22 |
| Dimensions (LxWxH) mm | 1092 x 740 x 559 |
| Weight w/ Velvet Drive (lbs./kg) | 833/379 |
At 260 hp, the Tow Sports 5.7 TKS Inboard is the value leader in the MerCruiser Tow Sports line. Its proven small block V-8 offers excellent power and features our exclusive Turn Key Starting (TKS) system, along with a host of other standard MerCruiser Tow Sports inboard features. With MerCruiser's exclusive TKS system, standard on all carbureted engines, no longer will you have to deal with the hassle of starting a cold engine. Simply turn the key – no choke, pumping or priming required. In fact, the entire MerCruiser gas engine lineup features turn key starting, whether the engine is fuel-injected or carbureted. No other engine manufacturer can match that.
| 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 | 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 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 |
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.
| Power | 330 hp (243 kW) |
|---|---|
| Full Throttle Range | 4800 - 5200 RPM |
| Displacement | 350 CID (5.7L) |
| Engine Type | V8 |
| SmartCraft® | Yes |
| Engine Control System | ECM 555 with SmartCraft CAN Capability |
| Fuel Injection System | Multi-Point Electronic Fuel Injection |
| DTS | Yes |
| Water Drain System | Optional |
| 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 |
| Weight w/ Velvet Drive (lbs./kg) | 821/373 |
The Scorpion 350 engines are here with a vengeance. Sporting a Tunnel Ram intake manifold and a 90-mm throttle body, no other tow sports engine can deliver the sting of a Scorpion. Scorpions are not all brawn – equipped with the ECM 555 Controlled Area Network they make the entire vessel an intelligent system. The SmartCraft® system serves as an I/O hub for digital engine and environmental information and enable features like Engine Guardian to protect your valuable investment.
| Power | 340 hp (250 kW) |
|---|---|
| Full Throttle Range | 4800 - 5200 RPM |
| Displacement | 377 CID (6.2L) |
| Engine Type | V8 |
| SmartCraft® | Yes |
| Engine Control System | ECM 555 with SmartCraft CAN Capability |
| Fuel Injection System | Multi-Point Electronic Fuel Injection |
| Water Drain System | Optional |
| 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 |
| Weight w/ Velvet Drive (lbs./kg) | 821/373 |
Drawing its heritage from the Mercury® Racing 377 Scorpion, the Scorpion 377 is a torque-beast designed to pull like nothing else. The 6.2L has the stroke to produce the best stump-pulling torque from a small block V-8. Why high torque instead of big power? Because it takes torque, not power at high rpm, to deliver the throttle response you want with a fully ballasted boat.