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30.00 (in)
22.00 (in)
32.00 (in)

300 HP @ 4600-5000 RPM

Get the fuel injected V8 engine you always wanted for your sterndrive cruiser. This is the perfect repower for: 5.0L, 5.7L, and 350 carbureted and fuel injected engines. The 350 MPI Bravo provides cast iron durability with exclusive Black-X valve technology and is compatible with SmartCraft digital gauges.

  • Remote Oil Filter
  • Gen II cool fuel system
  • Dry-Joint exhaust system
  • Engine flush system included


300 HP (224 kW)
Full Throttle Range 4800-5200 RPM
Displacement 350 CID (5.7L)
Engine Type All new iron block with Quicksilver iron heads using screw in rocker studs, Black-X valves, and hardened valve seats
Bore & Stroke 4.00” x 3.48” (102mm x 88mm)
Compression Ratio
Rocker Arm Ratio 1.5:1 Stamped Steel
Cranktrain Nodular Iron Crankshaft and Powder Metal Rods
Fuel Requirement 87 Octane (R+M)/2
Fuel System
MPI system with Gen2 Cool Fuel
Induction System Marine intake with iron base and 2-piece long runner intake with 75mm Throttle Body Unit
Control System ECM 555 with SmartCraft CAN Capability
Ignition System Crank Fired High Voltage Switch w/Knock Control & Iridium Spark Plugs
Charging System 65 Amp / 917 Watt Alternator
Water Drain System Multi-Point Drain - Hand Removable Blue Drain Plugs
Exhaust System Iron Manifold with Dry-Joint Exhaust Elbow
Cooling System Thermostatically Controlled Raw Water - 160 F
Accessory Drive System Serpentine Belt
Lubrication System High Flow Oil Pump
Reccomended Engine Oil SAE 25W40 NMMA Certified FC-W Synthetic Blend
Audio Warning System Oil Pressure, Coolant Temperature, Drive Lube, Water Pressure
Bravo One Ratios 1.50:1, 1.65:1
Bravo Two Ratios 2.00:1, 2.20:1
Bravo Three Ratios 2.00:1, 2.20:1, 2.43:1
Dimensions (LxWxH) 32”x 30”x 22”(814mm x 740 mm x 559 mm)
Engine Weight (lbs./kg) 932 / 423
Optional Fresh Water Cooling Dealer Installed Kit
Boat Harness Type 10-pin