Rebuild

[2001-400ex'er]

Soon I am going to rebuild the top end on my 400ex and I can get either a GWC 416 JE kit with a St. 2 Hotcam and gaskets for 300$, or I can get a Wiseco 440 pistion and St. 2 Hotcam with gaskets for 300$ also. I ride pretty much everything and was wondering which would be more reliable and faster ( with the 440 I would get the heavy duty studs). oh yah 11:1 compression. I know there are alot of posts on this but thanks.

[cletusEX]

I would stick with the Je 416. This allows you to go bigger at a later date. I personally wouldn't run a Wiseco piston. I have seen to many Wiseco 440's smoking, but that is just my opinion.

[TC426EX]

Go with the 416 and if you got the money do the head studs anyway. If you can get a 426 kit then I would do that. Either way, the 416 or the 426 will rev faster than the 440 and make similar power so either of those are better options...

I personally havent had a problem whatsoever with my wiseco piston, but if you want to go with JE or Ross or whatever thats fine...