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5.7 TKS
At 260 hp, the 5.7 TKS Inboard is the value leader in the MerCruiser Inboard line. Its proven small block V-8 offers smooth operation and our exclusive TKS system, along with a host of other standard MerCruiser inboard features. Included is MerCruiser's exclusive Turn Key Starting (TKS) system, standard on all carbureted engines. This patented feature eliminates the hassle of starting a cold engine. Simply turn the key – no choke, pumping or priming required. The entire MerCruiser gas lineup features Turn Key Starting. No other engine manufacturer can match that.
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5.7 TKS |
| Power |
260HP (194KW) |
| Full throttle Range |
4200 - 4600 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 |
| 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 |
Closed Cooled Iron Manifold with EDP 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 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 |
1.5, 2.0, 2.5, 2.7:1 |
| ZF 63 IV |
1.5, 2.0, 2.5:1 |
| ZF 45 C |
N/A |
| Dimensions (LxWxH) in |
43x 30 x 22 |
| Dimensions (LxWxH) mm |
1092 x 740 x 559 |
| Weight w/ Velvet Drive (lbs./kg) |
888/400 |
| Optional Freshwater Cooling |
Kit |
5.7 TKS
| Features |
Reliability
- Thunderbolt V Hi-Energy Ignition and platinum-tipped spark plugs ensure reliable starts
- 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
- Industry-exclusive 3-year limited corrosion failure warranty
- Proven GM cast iron block V8 power for years of reliable operation
- EDP-coated exhaust elbows resist temperature and corrosion for long life
- Serpentine belt system for longer belt life
Performance
- Dual Plane intake manifold for improved fuel atomization means more power & torque
- Revised fuel calibration for more crisp acceleration and improved running quality
- Low restriction flame arrestor for added horsepower and torque
Easy Ownership
- 3-year/300 hour maintenance interval on many periodic service items saves time and money
- Easy Oil Drain system is cleaner and makes periodic service simple and less work
- 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
Technology
- Turn Key Starting for easy starts, cold or hot, every time with no choking or priming
- The helm-mounted Audio Warning System monitors oil pressure and engine temperature and provides an instant alarm if either of these vary from normal range
- Large 65 Amp alternator provides plenty of power for popular onboard electronics
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