I thought those new Mercs were still based on a GM LS block, just with some minor tweaks and better attention to the marinization process?
Mercury MerCruiser’s new 6.2-liter V-8 300hp and 350hp sterndrive engines, which are purpose-built specifically for marine use, deliver increased power and torque while providing a remarkably quiet and smooth ride.
“With the introduction of our new 6.2-liter V-8 sterndrive engines, Mercury continues to build on its success of designing and manufacturing propulsion systems that deliver the most intuitive, powerful, worry-free, smooth and quiet boating experience,” said John Pfeifer, president of Mercury Marine. “Like the purpose-built 4.5-liter V-6 sterndrives we introduced a year ago, we’re extremely proud of the remarkable reliability and ease of maintenance delivered by the 6.2. This is a terrific engine platform that will improve boating everywhere.”
Engineered with new innovative features and state-of-the-art technology, the MerCruiser 6.2L sterndrive platform was designed and is manufactured at Mercury Marine’s world headquarters in Fond du Lac, Wisconsin. Just like the recently introduced MerCruiser 4.5L V-6 platform for 200hp and 250hp engines, Mercury designed and builds the 6.2L engine specifically for marine use rather than adapting and marinizing an automotive engine. The 6.2L is not burdened with automotive restrictions and unnecessary technologies that result in additional cost and complexity without adding value. The result
is a perfect balance of power, easy maintenance, superior corrosion-resistance and a quiet, pleasurable ride.
And here is a short video, you only need to listen to the first minute:
youtube.com/watch?v=tJWhBBvNzTQ