Yamaha 5.3L V8 Offshore F350

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One hundred miles offshore, it’s truly man vs. nature. Corrosive saltwater. Pounding waves. Churning seas that can blow up out of nowhere. But there’s one thing nature wasn’t prepared for—the pure power and reliability of this machine, the Yamaha V8 F350. It provides all the thrust, torque and raw energy required for today’s larger offshore boats.


Engine Type 60° V8 DOHC 32-valve
Displacement 5330cc (5.3L)
Bore x Stroke 94 x 96mm (3.70 x 3.78 in.)
Prop Shaft Horsepower 350hp at 5500 rpm
Compression Ratio 9.6:1
Fuel Induction EFI/DOHC
Exhaust In-Bank™ dual exhaust with Power Surge Chambers
Intake Single Throttle Valve
Ignition TCI, 32-bit ECM with integrated coil-in-cap ignition design
Spark Plug LFR6A-11
Alternator Output 50 Amp
Starting System Electric
Lubrication Wet Sump
Engine Oil Capacity 6.5L/6.3L without Filter
Full Throttle RPM Range 5000 ~ 6000 rpm
Cooling Water/Thermostatic Control
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Regular Unleaded (Minimum Pump Octane 89)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
Ethanol Blend Limit 10% Maximum
Gear Ratio (26:15) 1.73:1
Gear Shift Forward, Neutral, Reverse
Shaft Length X = 25" U = 30"
Degree of Tilt 67°
Degree of Trim -3° through +16°
C.A.R.B. Rating 3-Star
Dry Weight 25" shaft / 346 kg (763 lbs), 30" shaft / 354 kg (780 lbs)
Mounting Centers 28.6"
Steering Angle (maximum) 32° from center, either direction
Warranty 3-Year Pleasure, 3-Year Government, 1-Year Commercial