[Jim Brierley]

ARP #300-8333 is a 10-pack of 12 point rod nuts. Another advantage of them is when an A pan is used on a B block, the pan needent be dimpled. On the last few engines I built, I machined wheel lug nuts flat (removed the taper) and used them as main nuts. I re-spot face the rear cap, use hardened steel flat washers, no wire, loctite, just oil and torque. I shortened a 3/4" socket, used with a flex-type totque wrench will get to the inside bolt.