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MK3 & Atlas

Classic Norton Commando Motorcycles.

MK3 & Atlas

Postby seattle##gs » Sun Sep 10, 2017 12:31 am

I have an rs inlet rocker that has been damaged because the motor was run with out oil. I cannot pass the spindle through it. I have a replacement from an atlas head, just checking on whether or not it is interchangeable or not. I can read the same part number...067....on both. The MK3 looks like it is beefier than the Atlas rocker but is that all important? Same cam...same springs... Is there a ratio difference?

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Re: MK3 & Atlas

Postby Mike B » Mon Sep 11, 2017 10:51 am

Depends on the year/engine # of Atlas engine....changed late '65, ser # 114870.

Mike B

Mike B
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