Minecraft Mod Help/Request with Hex editor

Basicly I was wondering if it's possible to find a "Block" in the Hex editor. No particular block, but a block type. Then do a find/replace all to another block type.

For example, say I found the code for a water block. Then I found the code for wood. Then I replace All water in a map with Wood.

Is this possible? I was going to try it tonight when I get home, but was hopping someone has already tried it and can give me the results.

 

You can do that with 360Revolution mate .

 

2 things there, I can only use my XBOX's Mac address online (can maybe clone mac)
Also, in revolution, you can only change the stuff in your inventory if i'm not mistaken. Unless there has been an update. I havnt been able to use it for sometime now.

 

I wish, but sadly you can't. It only works with your own inventory.

 

Ohh no you cant replace anything on the map you have to do it your self from what i know .

 

So, does what i mentioned seem fesable?

 

No probably not mate .

 

Too many blocks would need to be replaced, and also there would be a lot of unloaded chunks/cells.