Totally agree that pics on the net are sometimes deceiving.
They are much bigger than a regular magnum head. I need a couple stock valves to measure and bench them.
In my honest opinion there is absolutely no way in hell would i run these out of the box as an assembled head from SM..
Under the valve job is butchery. I dont expect them to flow as they should with this kind of intake port but they might still move at a higher lift.