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

Honda BF350AXDA 350HP V8 iST

The Honda BF350AXDA is a sophisticated White 350HP V8 iST outboard designed for high-performance offshore steering and aesthetic excellence in North American waters. Utilizing a 5.0L 32-valve SOHC architecture against a dry weight of 765 lbs, this unit provides a remarkable power-to-weight ratio. This 25-inch long shaft model is configured for standard rotation, making it ideal for primary engine installations on premium vessels. Our professional marine outboard engines empower US captains with world-class digital control. Operational peak for this Honda 350HP occurs between 5000 and 6000 RPM. The 1.79:1 gear ratio provides a distinct hydrodynamic advantage for reaching plane quickly and maintaining cruise stability in heavy swells. Engineered in Japan, the unit incorporates advanced vibration dampening and corrosion-resistant components to handle the most marine salt-water environments, ensuring an incredibly smooth ride for luxury sportfishing across US coastal regions.

Technical Specifications of Honda BF350AXDA

- The 5.0L V8 SOHC engine architecture provides displacement for superior torque across all power bands.
- Standard right-hand rotation gearcase helps support efficient hydrodynamic thrust for primary offshore engine setups.
- The iST digital system enables precise drive-by-wire control for shifting and throttle synchronization.
- VTEC technology optimizes valve timing at high RPMs to maximize power and thermal efficiency.
- A high-output 93 Amp alternator delivers 70 net Amps of charging power for critical marine electronics.
- Integrated electric power steering capability helps support maneuvering regardless of sea conditions or vessel speed.

V8 Performance Engineering

This V8 VTEC engine leverages variable timing to maximize power output for the US market. This results in fuel economy at low speeds and immediate high-end power for offshore transit. It offers a sophisticated balance of power and thermal efficiency.

PGM-FI Induction System

The fuel induction system precisely manages the air-fuel mixture to optimize combustion and reduce consumption. This helps support instant throttle response and consistent power delivery during high-speed runs through coastal inlets. It is specifically engineered for the rigors of American saltwater boating.

25-Inch Propulsion Shaft

The 25-inch shaft is designed for standard offshore transoms requiring deep propeller immersion and hydrodynamic efficiency. This configuration helps support consistent performance and minimal cavitation on fiberglass offshore fishing hulls. It is the primary choice for boaters upgrading to V8 4-stroke power.

Digital iST Drive-By-Wire

The Intelligent Shift and Throttle system removes mechanical cables for a helm experience in busy harbors. This drive-by-wire technology allows for docking and precision throttle adjustments. It provides the high-tech control required for modern professional maritime vessel management.

Honda Factory Protection

Honda Marine protects this Honda 350HP unit with a comprehensive 5-year limited warranty for American boat owners. This factory-backed coverage covers major components against manufacturing defects to helps support long-term maritime reliability. It reflects a commitment to engineering excellence and customer support.

Premium Vessel Match

This White V8 outboard is the ideal match for mid-sized luxury center consoles and walkaround vessels. It provides the sustained high-end thrust needed for navigating heavy offshore swells and coastal tidal flows. It remains a staple choice for aesthetic-conscious US boaters.

Maintenance & Longevity

Regular inspection of the wet sump lubrication system is vital for maintaining the 5.0L V8 engine’s tight tolerances. Always flush the cooling system with fresh water after each salt-water excursion to maintain the unit’s internal integrity.Pro Tip from the Shop:Apply a high-quality marine wax to the White finish periodically to maintain its UV-resistant properties and prevent salt-spray staining in the intense US coastal sun.