Macktitan 525

Hello,

just wondering if anyone knows some information on the Marine spec E9, would really like to know what is diffarent about them to produce 925hp. My thoughts were fuel pump, cam and decompression, but I'm just speculating as I don't know a lot about that particular engine.

Does anyone have a spec sheet or something along those lines? 

Also do you guys in the states see them coming up for sale often?

Any info would be greatly appreciated. 

Cheers!