every verado I've seen, including the proto type ones in mercury class( ididn't take the verado class, but they were in the class room) were aluminum blocks. they don't need cast iron to weigh that much, they've got enough crap on them on their own. The Verados are weighed less oils, filters, fuel filters, power steering actuator(that you have to have on the bigger engines) and prop. Bass and Walleye did a right up a couple of years ago where they weighed everyones 250 hp fourstroke with all the stuff that had to go with it to make it work(less controlls and helm). I can't rememeber teh specifics, but i remember the verados were over 100 lbs heavier than advertised rigged out, and less weight than teh Zuk's or Yamaha's
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