A few other details are leaking out from the boatbuilders and such. The engines were seen at the most recent SKA tournament in Key West. Some details:
1. it's a new engine and not just a software dialup of the 300. It has new heads, new supercharger and other internal parts changes....no change in boost pressure.
2. It is the same displacement as all other 6 cyl verados.
3. It will burn 91 mandatory and carry the same warr as the XS 300 (2 yr).
4. some changes to the gearcase - I assume more strength
5. and it is WILD looking....look for pics here on the start of the show with another surprise that will blow you away.
the proto pic:
