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Seven Marine broke new ground with their 557 horsepower outboard, which was the most powerful outboard engine to ever hit the water. Now they've topped their own mark, introducing a 627 HP model for 2015 at the Miami Boat Show. Join our boats.com Outboard Expert Charles Plueddeman for a quick look at how they did it, and what's been done to get the power-boost.

Watch the original 557 sea trial: http://www.youtube.com/wat...

Read about the sea trial with triple 557s: http://features.boats.com/b...

Read the full story: http://features.boats.com/b...

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