Honda BF350 V8 Outboard Motor

The Honda BF350 iST® is Honda’s most powerful production outboard, delivering an impressive 350 horsepower from an all-new 4.95L V8 four-stroke engine. Designed for offshore fishing boats, luxury cruisers, and large center consoles, the BF350 combines exhilarating performance with legendary Honda reliability, exceptional fuel efficiency, and advanced electronic controls.

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Key Features

Performance & Power

• All-new 4.95L V8 four-stroke engine
• Delivers 350 HP at the prop shaft
• Runs on unleaded gasoline (minimum 86 octane)
• Honda’s first-ever production V8 marine outboard
• Adapted from proven Honda automotive engineering
• VTEC® (Variable Valve Timing & Lift Electronic Control) provides a broad torque curve and smooth power across the entire RPM range
• BLAST® (Boosted Low Speed Torque) improves acceleration and dramatically enhances hole shot performance
• Fully balanced engine and crankshaft minimize vibration
• High-strength crankshaft manufactured using the same alloy and testing standards as the Acura NSX supercar
• Offset 30° crankshaft design eliminates the need for counter-balancing while improving smoothness

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Unparalleled Performance

The BF350 is engineered for outstanding efficiency, effortless operation, and premium boating experiences.

Advanced Technologies

• Honda Lean Burn Control® improves fuel economy during cruising
• New friction-reduction technology increases efficiency and extends cruising range
• Reduced fuel consumption means fewer refueling stops
• Environmentally responsible operation through improved combustion efficiency

Honda iST® Drive-by-Wire

Honda’s latest Intelligent Shift & Throttle (iST®) system delivers complete electronic engine control.

Features include:

• Electronic throttle and shifting
• Precision engine response
• Trim Support
• Automatic Tilt
• Cruise Control
• Troll Mode
• Superior docking control
• Smooth low-speed maneuvering
• Excellent control of large boats
• Ergonomic top-mounted digital controller

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Charging System

The BF350 is equipped with Honda’s highest-output charging system.

• 70A charging system
• 12-volt electrical system
• AMP+ charging support during idle
• Easily powers today’s electronics, sonar, radar, GPS, lighting, audio systems, and onboard accessories

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Reliability & Durability

Honda designed the BF350 for years of dependable operation in demanding marine environments.

Built to Last

• Premium corrosion-resistant materials and finishes
• Easy-access replaceable sacrificial anodes
• Excellent saltwater durability
• Extended maintenance intervals
• Easy service access for routine maintenance
• Legendary Honda engineering and reliability

Smooth & Quiet Operation

• Fully balanced V8 design
• Reduced vibration throughout cruising speeds
• Quiet operation for comfortable onboard conversations
• Exceptional refinement during long-distance boating

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Premium Design

The BF350 features Honda’s newest marine styling.

• Ultra-slim single-line engine profile
• Modern premium appearance
• Complements luxury boats and offshore vessels
• Available in Grand Prix White
• Chrome Honda badging
• Black trim accents

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Warranty

Honda backs the BF350 with a:

• 36-Month Distributor Warranty

(Refer to your owner’s manual for maintenance schedules and warranty details.)

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Engine Specifications

Specification	Details
Engine Type	4-Stroke SOHC, 60° V8, 32-Valve
Displacement	4,952 cc (302 cu. in.)
Bore × Stroke	89 × 99.5 mm (3.50 × 3.92 in.)
Rated Power	350 HP @ 6,000 RPM
Recommended RPM Range	5,000–6,000 RPM
Fuel	Unleaded Gasoline (Minimum 86 Octane)
Battery Charging Output	12V – 70A
Gear Ratio	1.79:1

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Dimensions

Measurement	Specification
Overall Length	1,121 mm (44 in.)
Overall Width	650 mm (25.6 in.)
Overall Height (X-Type)	2,145 mm (84 in.)
Overall Height (U-Type)	2,272 mm (89 in.)
Transom Height (X-Type)	638 mm (25 in.)
Transom Height (U-Type)	765 mm (30 in.)

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Dry Weight

Model	Weight
X-Type	348 kg (768 lbs.) (without propeller)
U-Type	353 kg (778 lbs.) (without propeller)

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Propeller Rotation

Model	Rotation
X / U Models	Standard Rotation
XC / UC Models	Counter-Rotating

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Standard Features

• Honda iST® Intelligent Shift & Throttle
• VTEC® Variable Valve Timing
• BLAST® Low-Speed Torque System
• Lean Burn Control®
• Fully Balanced 60° V8 Engine
• 32-Valve SOHC Design
• 70A High-Output Charging System
• AMP+ Idle Charging Support
• Trim Support
• Automatic Tilt
• Cruise Control
• Troll Mode
• Precision Electronic Throttle & Shift
• Premium Corrosion Protection
• Quiet Low-Vibration Operation
• Easy Maintenance Access
• Counter-Rotation Models Available
• Premium Grand Prix White Finish

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Ideal Applications

The Honda BF350 iST® is engineered for demanding marine applications, including:

• Offshore fishing boats
• Luxury center consoles
• Sport fishing vessels
• Cabin cruisers
• High-performance recreational boats
• Multi-engine offshore installations
• Commercial and heavy-duty marine operations
• Large recreational watercraft

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Why Choose the Honda BF350 iST®?

The Honda BF350 iST® represents the pinnacle of Honda Marine engineering. Featuring an all-new 4.95L V8, advanced iST® Drive-by-Wire controls, VTEC®, BLAST®, and Lean Burn Control®, it delivers exhilarating acceleration, exceptional torque, smooth operation, impressive fuel efficiency, and refined handling. Combined with premium styling, industry-leading reliability, and advanced electronic controls, the BF350 iST® is the ideal choice for boaters seeking maximum power without compromise.