well seing as no one over on hotboat has any info i figured i would tap a few brains over here. i have a set of gen VI 500hp heads that i am selling and the guy who wants them is unsure if they will work on his gen V motor. i know some of the water ports are a little diff. shape, but i do not know if this means that you can't use them. thanks for the info.

Yes, they are the same heads. They didn't change between Gen V and Gen VI.
Dennis Moore