pon
it starts at episode 163
The fight Between naruto and pain
well pain attacks the leaf on episode 157, but naruto actually naruto fights the real pain in episodes 162-166
Naruto Shippudden Episode no 166 Named "Confession"
it is ep 163 until 169..
The battle starts toward the end of episode 163 in Naruto Shippuden and goes until episode 169. In episode 172, He meets Nagato, who has been controlling the six paths of Pain.
episode 430 Naruto's Return, it is a good fight loved watching it
Naruto fights pain in 6 episodes which are 163-168. He starts to fight pain in episode 163 and defeats him in 168 if you are just counting the 6 pains that he controls. So far naruto hasn't confronted the real pain in person so the fight is not completely over. 7/15/10
http://www.animefreak.tv/watch/naruto-shippuuden-episode-163-online
In naruto shippuden 163 naruto arrives at leaf village to find it destroyed. He begins to fight pain and the episode ends with naruto throwing rasenshuriken at pain.
Naruto Shippuden Episode 114
Chapters 430 to like 444. The way the chapters are im guessing that it how much is about Naruto vs. Pain.