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8.1S Horizon (370-hp)


Brief Summary

This is the big-gun in the Mercury MerCruiser line of recreational powerplants. It's designed to put real performance into mid-size express cruisers.

Key Features

  • Mercury-exclusive PCM 555 high-speed microprocessor that optimizes fuel mixture, knock control and ignition timing independently for each cylinder, re
  • Distributorless ignition system that improves timing accuracy and eliminates mechanical timing adjustments.
  • Closed cooling with 5-year coolant.
  • Redesigned exhaust system with aluminum manifolds and stainless steel elbows that is 65 percent lighter and more corrosion-resistant.
  • Exclusive Engine Guardian protection senses potential problems and virtually eliminates the chance for engine damage due to overheating, low oil press
  • Long individual runner intake manifold design provides optimum torque and horsepower for demanding marine applications
  • Sequential fuel and spark control maximizes performance from every engine cylinder
  • Convenient remote oil filter location makes oil changes cleaner and makes periodic service simple and less work
  • Cartridge-type water-separating fuel filter helps protect fuel system and engine against damage

Specifications

Type of Engine
Number of Cylinders 8
Horse Power 370
Configuration V-8
Weight 1130.00lbs
Fuel Type Gasoline
Fuel Delivery Fuel Injected
Shaft Length Options
Shift Throttle Control
Displacement 496.00cu in
Steering Control
Recommended Fuel
Alternator Output 65 amp
CARB Rating
Engine Monitoring System

Captain's Report