Cummins Cams Cummins 24 Valve | Call - 512-355-9101 | Page 7

1.45″ steel tappets for over
5000rpm and heavy valve
springs or a billet steel cam.
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There comes a point as rpm,
valve lift, spring pressures and
valve size increase, that a single
spring is no longer up to the task
of controlling the valves.