416ex

[chrisjhayes2008]

how to put a 416 kit and hot cams stage 2 in a 400ex and is it hard and do you have to bore it out or resleeve or what? please help

[400exwheelieboy]

well it depends you can do either u can bore it or resleeve it but the hotcams installation is very simple just gotta make sure u dont turn the timing chain from the position its in.

[416exrider03]

I just put a 416 kit in mine and i bored it out. The cam is easy change just make sure u don't let the chain drop off the bottom or you will have more problems then u want. I used the hotcams satge 2 and the power is a big difference.