These are the same rods used in our street and strip stroker small block engines. Custom 4340 I beam rods with 7/16 ARP 8740 cap screw hardware. Intended for a 2.000 rod journal. Each rod is bronze bushed for a free floating .927 pin. These rods measure 6.125 from center to center and are .940 in width on the big end. Gram weight 605.