- March 12, 2014
-- Seven Marine has positioned the 557 squarely between comparably powerful inboard set-ups and multiple outboard riggings. The 557 revolutionizes the market by creating for the first time an opportunity for enthusiasts to experience the power, refinement, features, and conveniences previously exclusive to inboard, luxury sport yachts, but with all the performance, efficiency, and ease of use inherent to outboards. Start with a fuel-injected marinized 6.2L supercharged small-block V8, managed by GM's powerful MEFI 6 engine controller. Then put out 557 horsepower at the prop shaft and one word comes to mind... Muscle. General Motors' LSA has nearly six decades of continuous development behind it and 100,000,000 small blocks later, it's ready for a whole new application - the outboard motor. Running on 89 octane fuel - no premium required. Turn the key and the 557 ignites with a classic V8 growl. The 3.5" exhaust combined with traditional thru-hub outlets keeps running decibels to a minimum for comfortable cruising. A ZF Marine transmission, with roots from inboard technologies, designed exclusively for the 557. Fly-by-wire controls, wet disc clutches, and spiral bevel gears handle the shift, providing smooth progressive transfer of power from the engine to the prop. Engineering the transfer of power on the industry's first horizontal crankshaft outboard motor presented new design opportunities. Lightweight helical gears transfer the power quietly and for the first time, our quick-change gear system provides a targeted mix of speed, torque and fuel economy. The 557's is closed looped - the most advanced, and first ever for an outboard motor. Ethylene glycol continuously flows through the engine in a closed-loop. Seawater with its corrosive impurities is pumped by twin counter-rotating gear driven impellers, through engineered coolant and oil heat exchangers, never contacting internal engine components. Pushing the performance envelope to new levels. Setting numerous industry firsts. These are advances that only account for a fraction of the performance makeup of Seven Marine outboards.
Look for the Seven Marine display April 3-6, at the Gulfcoast Yacht and Boat Show, in Gulfpport, Mississippi. For more information check out www.gulfcoastyachtandboatshow.com