Sterndrive 860

 

Designed, developed and manufactured in-house, the naturally aspirated, 9.0 liter 860 sterndrive engine features Mercury Racing’s exclusive aluminum four-valve cylinder heads and dual overhead camshaft valve train. This proven valve train, which greatly enhances engine performance and durability over a standard two-valve design, enables the engine to produce 860 horsepower at 6800 rpm on 89 octane (Rec 90) pump fuel. The engine’s 6300-6800 rpm operating range offers unsurpassed acceleration for its power rating. The higher rev limits expand the range of propeller options available for a variety of applications.

 

Robust and powerful, the 860 features Mercury Racing’s exclusive aluminum four-valve cylinder heads and dual overhead camshaft valve train.Side-facing ram horn intakes direct induction noise rearward for enhanced power and to reduce cockpit noise for a more pleasant boating experience.

 

 

SPECIFICATIONS

 

860 RATED HP AT TRANSOM

6300-6800 FULL THROTTLE RPM

9.0 L DISPLACEMENT

9.75:1 COMPRESSION RATIO

BORE & STROKE: 4.57 x 4.21 IN/116 x 107 MM

CYLINDERS / ENGINE CONFIGURATION: V8

ALTERNATOR: 95 AMP

FUEL REQUIREMENT: 87 Octane Minimum (R + M)/2, (95 RON) Global Calibration

FUEL SYSTEM: Sequential Fuel Injection

GEAR RATIO: Application Dependent

WARRANTY: 2-Year Limited Warranty For Recreational Boating

CONTROLLER: PCM09

TRANSMISSION: Mercury Racinq Dry-Sump Hydraulic

DRIVE UNIT: M6

LENGTH: 31 IN

WIDTH: 38.3 IN

HEIGHT: 26 IN

WEIGHT: 1420 LBS