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440EX Valvetrain

Old Mar 29, 2005 | 12:22 AM
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Default 440EX Valvetrain

I'm building up a 440 and i was wondering wheather I should have the rockers hardfaced for use with the Hot Cams stage 2 cam.

Any info/past experinces would help.

Thanks Andrew.
 
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Old Mar 29, 2005 | 07:22 PM
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Default 440EX Valvetrain

Any one?

Thanks Andrew.
 
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Old Mar 29, 2005 | 08:09 PM
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Default 440EX Valvetrain


im putting in the hotcam stage 1 and i was wondering the same thing, or if i should just get new rockers?
 
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Old Mar 29, 2005 | 09:36 PM
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Default 440EX Valvetrain

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!
 
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Old Mar 29, 2005 | 11:17 PM
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Default 440EX Valvetrain

Thanks for the info.
Andrew
 
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Old Mar 30, 2005 | 06:09 AM
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Default 440EX Valvetrain

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.
 
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Old Mar 30, 2005 | 06:11 AM
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Default 440EX Valvetrain

oops, I had a typo, duncan said it was NOT a must do.
 
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Old Mar 31, 2005 | 03:59 AM
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Default 440EX Valvetrain

the hotcams are drop in cams and hardened rockers could actually ruin this and all other drop in cams.
 
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