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Flat tappet valve spring life
I am curious as to how often it is necessary to change valve springs to try and avoid catastrophic failures? With sprint race events of 7000rpm over 15mile races x3 per event and some much easier road miles. So not sustained high rpms!!
My camshaft is flat tappet with 180Ibs seated pressure!
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A J. Newton
The 1960's rocked!
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