Dwarfy

Hi, I was looking for a way to change the item drop of a default minecraft block. I can see how it is done with custom blocks, but in my case I'm trying to have stone blocks drop stone (like silk touch) rather than cobble and for iron/gold ore blocks it will drop ingots when mined using a new pickaxe I've created. Problem is I don't really see any forge way to do this, so if anyone knows if it can be done and/or how I'd appreciate the help.