Mercury is continuing to up the ante for its big outboards for cruising boats, introducing new Verado and FourStroke V-8 and V-6 models from 175- to 300-hp. The new 4.6L V-8 engines are part of the largest new product development in the Wisconsin company’s 80-year history. “These new V-8 engines, like the V-6, will set a new benchmark in the marine industry,” said John Pfeifer, president of Mercury Marine. Indeed, the engines just won the Most Innovative Product award at the Hutchwilco New Zealand Boat Show, the largest in that nation, where they were displayed for the first time anywhere.…