I called GM an appernatly they only sell .50" over an thats it??? I want cast pistons perferably as this is going to be daily driver an dont need forged ones though from the costs im seeing almost might be worth it to just make it a damn race motor thats what i get for buying a water damaged motor from someone..... or does anyone want to trade a .20" over bored lb7 block for a stock lb7 block kinda wanted to run stock pistons for money reasons an what not but unless someone knows were to get some pistons im kinda at a road block becuase of cost