For studs, the surface of the washer facing the block needs to ve scuffed with 500 grit sandpaper so it grips the cap or head surface. Just lightly scuffed so the washer can' t be turned by the nut. According to ARP 85 percent of torque goes to overcome friction, so using plenty of lube is vital in getting the right load on the studs or bolts.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky