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.
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.
A PERFECT FIT Drops right on a 15-inch transom – no jack plate or awkward flared transom required.
860
RATED HP AT TRANSOM |
6300-6800
FULL THROTTLE RPM |
9.0 L
CYLINDERS |
4.6 L
DISPLACEMENT |
Name | Description |
---|---|
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 For Recreational Boating |
CONTROLLER | PCM09 |
TRANSMISSION | Mercury Racinq Hydraulic |
DRIVE UNIT | M6 |
LENGTH - FROM BACK OF BLOCK | 31 IN |
WIDTH | 38.3 IN |
HEIGHT | 26 IN |
WEIGHT | 1420 LBS |
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