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12 Here's a shot of the two Comp pushrods we used. As you can see, there isn't much difference in length between the too-short 8.000-inch pushrod and the just-right 8.100-inch unit, but it makes a big difference in how the rocker arm contacts the valve stem. If the rocker tip isn't centered over the valve stem, it can push the stem against the guide and cause excessive wear and--eventually--a dropped valve. View Related Article
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