Valve spring life - CLASS RACER FORUM

07-28-2009, 11:15 AM

BlueOval Ralph

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Re: Valve spring life

NASCAR Cams are smooth cams and no where the jerk a good Drag Race cam has.

Quote:

Originally Posted by HIGHOCTAIN2000

I hear talk of superstock racers that have to change valve springs after 10 runs, is this for real? I know they run nearly an inch of lift, and almost 9000 rpms, but nascar runs 9000 for 500 miles. THOUGHTS.

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