Will this bore clean up, magnum head content too.

second, do these look like stock magnum heads with some gasket matching? the pushrod pinch is .828" at the widest part.
The valves and springs look stock or what?? I see where the pushrod holes in the heads were massaged some but a few were still rubbing.

also is this raised pyramid shape in the port floor stock??

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AHA, figures, the cheapest magnum castings have the floor vane in the port.

New Magnum heads for 347 with Flow data