Volvo Penta AQ260B: High-Performance Inboard Marine Propulsion The Volvo Penta AQ260B is a robust gasoline-powered inboard marine engine engineered for reliable boat propulsion, delivering exceptional power and efficiency in demanding aquatic environments. Introduced during a brief production run from 1985 to 1986, this model exemplifies Volvo Penta’s commitment to high-performance marine engineering, tailored for seamless integration into vessel hulls and shaft drive systems. Key technical specifications include a manufacturer rating of 260 horsepower (191 kW) at the crankshaft, powered by an 8-cylinder inline configuration. As an inboard engine fueled by gasoline, it operates without the need for complex diesel infrastructure, emphasizing straightforward marine application. Its compact design optimizes space utilization within the hull, making it suitable for boats requiring balanced power delivery without excessive footprint. In marine-specific contexts, the AQ260B shines through its marine-grade construction, featuring corrosion-resistant materials and vibration-dampening components that withstand saltwater exposure, hull flexing, and relentless wave action. This durability minimizes downtime and maintenance costs, while the engine’s proven reliability—rooted in Volvo Penta’s heritage of robust motor designs—ensures consistent operation in harsh maritime conditions. The gasoline fuel system offers clear advantages in fuel availability and simpler logistics compared to diesel alternatives, with reduced infrastructure demands for refueling and storage. Performance-wise, the 8-cylinder layout provides smooth, high-revving torque for rapid acceleration and sustained top-end speeds, ideal for dynamic boating scenarios. It delivers refined operation with low cabin noise and vibration, enhancing onboard comfort during extended voyages. This engine is particularly well-suited for medium to large recreational vessels, such as performance yachts, water sports boats, and high-speed tour or commercial craft, where operators prioritize agility, longevity, and responsive power in competitive or leisure marine applications. With its transitional-era design, the AQ260B remains a niche choice for enthusiasts seeking vintage reliability fused with modern marine prowess.