Well it is officially mine now and still sports the original 6764 crank. Not sure if it is still standard but will continue the investigation tomorrow. The block still appears to have the standard 4" bore but my machine shop will have to verify that and mag for cracks before I get to much more excited by it. A question I have is that the main cap bolts only have one set with windage tray studs. Can anyone point me in the right direction for factory correct bolts, windage tray and oil pan?