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Hi, I have a used highport intake cam for the SR20 to put on my lowport, but my question is more for cams in general. How much damage(scratches, etc) can a cam have and still be good? The cam I have has a few scratches on it--mostly real light on the faces of the lobes, but a couple of small moderate ones, and is slightly shipped on the edges of some of the lobes. What would be anyone-who-has-experience-with-cam's opinions about using it? Thanks in advance
 

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If you can feel scratches in the lobe of a cam by running your fingernail across the lobe, it will wear the rocker arm and change the clearances.

Lew
 

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Ninety-Nine SE-L said:
is it possible to repolish the lobes w/o affecting the lift or duration that much?
The cam lobes are hardened (Parkerized). Polishing the lobes will destroy the hardened surface, and the cam will wear faster than normal.

Lew
 
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