440EX Valvetrain
#4
Hotcam brand cams are drop in for the 450r. I know with a Webcam they recommend hardened rockers with their cams. Not sure what Hotcam recommends for theirs on a 400ex. Have you checked their web site? I'm sure that info would be there.
I just checked their web site. Hotcams for the 400ex are drop in cams, no hardened rockers required.
I have a Hotcam Stage II in my 450R and it rips!
I just checked their web site. Hotcams for the 400ex are drop in cams, no hardened rockers required.
I have a Hotcam Stage II in my 450R and it rips!
#6
I talked to duncan racing and they said it's absolutely a must do. I used my stock rockers and springs on my 440 for about 3 years now and haven't had any problems, and I ride pretty hard at the dunes.
#7
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