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.

 

COLOR OPTIONS

Plenum: Super Silver
Base: Super Silver

COLOR OPTIONS

Plenum: Super Silver Base: Super Silver

MODEL DETAILS

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.

 

Specifications

  • Rated Power at Transmission
    860 (641 kW)
  • Full Throttle RPM Range
    6300-6800
  • Displacement Liter/CID
    9.0/552
FULL SPECS
  • Stroke (in/mm)
    4.21/107
  • Compression Ratio
    9.75:1
  • Cylinder Arrangement
    V-8
  • Alternator (amp/watt)
    95/1340
  • Controller
    Distributorless
  • Fuel System
    Sequential Fuel Injection
  • Fuel Requirements
    89 Octane Pump Fuel
  • Transmission
    Mercury Racinq Hydraulic
  • Drive Unit
    M6, M8 Optional
  • Gear Ratio
    Application dependent (contact Mercury Racing for additional information)
  • Length (in/mm)
    31/791
  • Width (in/mm)
    38.3/973
  • Height (in/mm)
    26/664
  • Weight (lbs/kg)
    1420/644
  • Warranty
    2-Year Limited for Recreational Boating
HIDE SPECS

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High Performance Marine Engines