connecting rod help

360's in any form used those rod forgings, unbushed with pressed pins. Later 318's also used them unbushed with pressed pins. Later 340's used the same forging with bushed pin ends for floating pins. Not sure of the dates when the 3418645 rod forgings started. My "71" 340 had them. All small block LA piston pins are the same diameter, 273 pins are shorter. I would guess your pistons are 360, because of the dish.