what size ey hardened pushrods should i get? im gonna be getting a cam soon and i need to know what size pushrod for a 2005 silverado 5.3 L

 

are you talking about the length or the diameter? the lenght depends on what size cam you get. you can use the stock diameter. if the cam you pick out is not too big you can use the stock lenght and just get a set of hardened pushrods...that's what i did when i built my small block for my racecar...