1970-74 3/8” CONNECTING RODS Dimple big block 454 402 427 396 connecting. THESE RODS ARE THE LATER DESIGN OF THE DIMPLE ROD. IF YOU LOOK AT THE SHAPE OF THE LARGE END YOU CAN SEE THE SHAPE DIFFERENCE. ALL THREE ARE THE EARLY DESIGN. INCLUDES STOCK ROD BOLTS IN ALL THREE RODS. THESE HAVE BEEN IN THE BARN FOR OVER 30 YEARS. I DON'T THINK I WILL EVER NEED/USE THEM IN A BUILD. SO, THEY ARE AVAILABLE FOR YOUR CONSIDERATION.