2026 Mercury Racing Outboard 360 APX 4.6L V8

Mercury Racing 360 APX Outboard

Pure Apex Series Competition Power
The Mercury Racing 360 APX outboard represents the pinnacle of closed-course racing performance. Part of the elite Mercury Racing Apex Series, this engine is engineered for Formula 1 tunnel boat competition where speed, precision, and durability decide the podium. If you are looking to buy a Mercury Racing 360 APX, you are choosing one of the quickest and smartest four-stroke race outboards ever produced.

Built for wide-open performance, the Mercury Racing 360 APX V8 is a true race-bred machine.

4.6L Naturally Aspirated V8 Performance

At its core is a 4.6-liter V8 powerhead featuring DOHC four-valve architecture and a short-runner intake system paired with cold-air induction. An aggressive 11:1 compression ratio and 7000 RPM redline extend the power curve while delivering explosive acceleration.

Performance highlights include:

• 360 HP naturally aspirated V8 output
• 4.6L displacement with DOHC / 4-valve design
• 11:1 compression for high torque
• 7000 RPM redline
• Competition ECU calibration
• Dynamic oil pickup for high-G racing conditions

This configuration delivers unmatched throttle response and sustained power for circuit racing.

Race-Optimized Lightweight Design

Every component is engineered to minimize weight and maximize reliability in competition. A cut-down flywheel, deleted balance shaft, and carbon-fiber top cowl reduce mass while maintaining structural integrity.

Lightweight engineering includes:

• Carbon fiber top cowl
• Reduced rotating mass flywheel
• Balance shaft deleted for weight savings
• Above-water exhaust for unrestricted flow and race tone
• 24-volt starter for instant dockside starts

The result is a Mercury Racing 360 APX engine built to dominate under race conditions.

12-Inch Midsection & SSM Direct-Drive Gearcase

The 12-inch racing midsection is purpose-built for Formula 1 tunnel boats, integrating a structural wet sump driveshaft housing and remote power trim and lift pumps.

Paired with the Super Speed Master IV (SSM) gearcase, the system delivers direct drive with no neutral or reverse—ideal for closed-course racing.

Drivetrain advantages:

• 12-inch F1 racing midsection
• Integrated power trim and lift
• SSM IV direct-drive gearcase
• No F-N-R shifting for pure race performance
• Overdrive spur gearset for left-hand prop rotation

This setup ensures maximum efficiency and control at extreme speeds.

Advanced Digital Control & Durability

Despite its race pedigree, the Mercury Racing Apex 360 outboard is designed for durability and reduced maintenance in competition environments.

Technology features:

• Digital throttle control for precision
• Competition engine calibration
• Designed for endurance racing reliability
• Reduced maintenance architecture

From dock to checkered flag, this outboard delivers consistent, predictable performance.