Putting a G4 processor in a G3 Pismo

Hey guys. I know this has probably been asked before but I have no idea how to formulate search terms to not get a ton of junk results, so please bare with me on this.

I have a PowerBook G4 with a 1.67GHz processor and DVI output and a retarded graphics card. I want to buy a Pismo and hotrod it as mentioned by The Apple Blog. Basically, I'm asking if I can pull the processor out of the G4 and drop it in the Pismo.

Also, if there's any site I can look up sockets and whatnot for these guys, let me know. MacTracker doesn't mention that stuff as far as I know.

http://theappleblog.com/2010/09/29/the-case-for-a-modular-macbook/

Alright, thanks.

When I search for processor upgrades I find a lot of sites that look like they haven't been touched since Pismo was a baby. Where do all you guys go for your upgrades?