Quote Originally Posted by Wulphie View Post
This is the pump the mechanic is referring to. These do pump significantly more water than what you would find on a pcm engine. If that will solve the problem is debatable. . . http://www.ebay.com/itm/OEM-MerCruis...-/400155601291
Because it doesn't say that it is for a 460, hence the fabrication work required on the brackets. I agree with Wotan, some pictures of the existing pump and engine as a whole might help here. Also, make the mechanic specify the exact part number(s) he needs for this fix and go from there. Otherwise, anything else is just a shot in the dark at this point.