Mercury Racing's new 540 engine was unveiled at the opening of the Miami International Boat show this morning.

http://speedonthewater.com/new-boats...ils-540-engine

Interesting. So they make a 520, a 540 and a 565.

The 525 look WAY better

It looks like it's the 565 with a single throttle body setup. With 21 more cubic inches and only 15 more peak horsepower, it's obvious that they went for the torque gain (50 ft-lb). Any upgrades to the Bravo?

Sweet more XR busting torque! When are they going to come out with a better bravo????

As soon as people stop buying it and go with something else!! If enough people boycotted the bravo and demanded Arneson, I'm sure Merc would do something about it. I here enough complaining on OSO about bravos, but people seem to just keep putting them on.

Would love to see LS-based offerings debuted.

Not for nothing if your constantly blowing up XR's with anything under 600hp, it isnt the drives fault...

Exactly, it also depends on WHO and HOW they are assembled!

Another low tech, high profit margin, 1960s motor out of Merc to replace what they already had. No big news..Where is the LSx 575 hp model?