2002 400ex engine

[thebig450es]

What do i need for an engine rebuild, ive haven't done one yet. I would like some more power also, i was thinking of a complete gasket kit, a stock bore 11:1 weisco and a hotcam stg 1. Any ideas thanks

[86 Quad R]

personally i would get the next over sized piston(11:1) and have the cylinder cleared for it, have the head freshened up and ported, add an aftermarket exhaust, and get a 450r carb for it. if that doesnt suit ya then add a cam.