I used ARP main studs. The ARP studs have a hex broached in the end so they are a little nicer to work with. We had to notch the pan for the windage tray nuts so it took some effort to get everything to fit.

It ran nice on the dyno today. No leaks anywhere after plenty of stress testing, valve lash looked good, cranking compression is identical in all 8 holes, plugs look good. So she should be ready to drop back in the car so Tim can take it to the track this summer.