There are 3 crossbolts on each side of the block right above the oil pan rail. If you look at this site www.genesis427.com you'll see them. Sorry I don't have any stock pics handy. The center 3 maincaps are crossbolted. This prevented "capwalk" seen at high rpms under constant load. Mopar did the same to the Hemi. They are still used today on the 4.6 Mod engines.