Honda BF350AXDA 350HP – iST 25″ Shaft Standard Rotation in White

Honda BF350AXDA 350HP V8 iST

The Honda BF350AXDA pairs a 5.0L 32-valve SOHC V8 with standard rotation, finished in white at 765 lbs dry — a strong power-to-weight ratio for primary engine installations. The 25-inch shaft is built into Mulmarine’s marine outboard engines lineup, giving US captains world-class digital control.

Peak output holds between 5000-6000 RPM. The 1.79:1 gear ratio gives a hydrodynamic advantage for reaching plane quickly and holding cruise stability in heavy swells. Engineered in Japan, this unit includes vibration dampening and corrosion-resistant components built for demanding saltwater environments.

Technical Specifications of Honda BF350AXDA

• The 5.0L V8 SOHC architecture delivers strong displacement for torque across all power bands.
• Standard right-hand rotation gearcase gives efficient hydrodynamic thrust for primary offshore setups.
• iST enables precise drive-by-wire control for effortless shifting and throttle synchronization.
• VTEC optimizes valve timing at high RPM for stronger power and thermal efficiency.
• A 93-Amp alternator delivers 70 net Amps of charging for critical marine electronics.
• Integrated electric power steering compatibility gives effortless maneuvering regardless of sea conditions.

V8 Performance Engineering

This V8 VTEC engine uses variable timing to balance fuel economy at low speeds with strong high-end power for offshore transit.

PGM-FI Induction System

The fuel induction system manages the air-fuel mixture precisely to optimize combustion, giving instant throttle response during high-speed coastal runs.

25-Inch Propulsion Shaft

The 25-inch shaft is built for standard offshore transoms needing deep propeller immersion, keeping performance consistent with minimal cavitation on fiberglass fishing hulls.

Digital iST Drive-By-Wire

The iST system removes mechanical cables for a seamless helm experience in busy harbors, allowing effortless docking and precision throttle adjustments.

Honda Factory Protection

Honda Marine backs this unit with a 5-year limited warranty covering major components against manufacturing defects, with nationwide US support.

Premium Vessel Match

This white V8 fits mid-sized luxury center consoles and walkaround vessels that need sustained thrust through offshore swells and coastal tidal flows.

Maintenance & Longevity

Regular inspection of the wet sump lubrication system keeps the 5.0L V8’s tolerances tight. Flush the cooling system with fresh water after each saltwater outing. Pro Tip from the Shop: apply marine wax to the white finish periodically to maintain UV resistance and prevent salt-spray staining in intense coastal sun.