I would NEVER do it................If it`s machined for bolts just get some new arp bolts and move on...............Helped George Koopal build a 427 chevy for a dragster that went 7.98 w/stock main bolts...........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....