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557


Brief Summary

Over two years ago a group of engineers in Wisconsin announced that they were making a 557-hp outboard engine. Prototypes were displayed in February 2011 at the Miami Boat Show. The following Fort Lauderdale show, two operating engines were shown on a 37’ Intrepid, and then engines were demonstrated at subsequent shows with a single on a 30’ Sea Hunter, and twins on a 38’ Fountain. And now, this week at the Ft. Lauderdale Boat Show, no fewer than six boats – 4 with twins, 2 with triples – will be at the dock ready for public scrutiny powered by Seven Marine 557-hp engines. The new Seven Marine 557 is the most powerful outboard engine on the planet.

Key Features

Specifications

Type of Engine
Number of Cylinders 8
Horse Power 557
Configuration V-drive
Weight 1045.00lbs
Fuel Type Gasoline
Fuel Delivery Fuel Injected
Shaft Length Options 20'' (508 mm), 25'' (635 mm), 30'' (762 mm)
Shift Throttle Control Electronic
Displacement 376.00cu in
Steering Control Power Assist
Recommended Fuel 87 octane
Alternator Output 12V 150A
CARB Rating
Engine Monitoring System

Captain's Report