2025 Mercury Racing 520 CC/DTS – 520 HP Naturally Aspirated V8 Sterndrive

The 2025 Mercury Racing 520 CC/DTS is a high-performance 520 horsepower naturally aspirated V8 sterndrive engine designed for recreational boaters seeking exceptional power, durability, and value. Positioned between the MerCruiser 8.2L MAG HO and the Mercury Racing 525 EFI, this engine offers a cost-effective solution without compromising on performance.

 Key Specifications & Features

• Engine Type: 8.6L V8 Four-Stroke, Naturally Aspirated

• Horsepower: 520 HP (388 kW)

• Full Throttle RPM Range: 4,800–5,200 RPM

• Displacement: 8.6L (523 cu in)

• Bore x Stroke: 4.56 in x 4.00 in (115.8 mm x 101.6 mm)

• Compression Ratio: 8.7:1

• Fuel System: Multiport Fuel Injection

• Fuel Requirements: 87 Octane Minimum (R+M/2), (91 RON)

• Ignition System: PCM (Powertrain Control Module)

• Alternator Output: 65A (917W)

• Cooling System: Closed-loop cooling system with five-year coolant

• Drive Unit Compatibility: Bravo One XR, Bravo One XR Sport, Bravo One XR Sport Master (Standard & Short), Bravo Three XR; Integrated Transom System Optional

• Warranty: Two-year limited factory warranty for recreational boating

 Performance Highlights

• High-Performance V8 Engine: The 8.6L V8 engine delivers 520 horsepower, providing exceptional acceleration and top-end speed.

• Advanced Fuel System: Multiport fuel injection ensures optimal fuel delivery for improved efficiency and performance.

• Durable Construction: Features a premium forged micro-alloy crankshaft, induction-hardened and precision balanced for maximum performance.

• Enhanced Cooling: Closed-loop cooling system with five-year coolant reduces maintenance and increases corrosion protection.

• Smooth Operation: Digital Throttle & Shift (DTS) offers smooth, “Zero Effort” operation for precise control.

The 2025 Mercury Racing 520 CC/DTS combines power, durability, and value in a single sterndrive engine. Its advanced features and engineering make it the top choice for performance enthusiasts seeking the ultimate boating experience.

 Elevate your boating experience with the 2025 Mercury Racing 520 CC/DTS – the pinnacle of sterndrive performance.