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With the oil passages to the heads blocked off, the vital fluid is passed through a set of hollow Trend .135-inch wall pushrods, to the T&D shaft rockers. Barry has often had to mill down the head bolt recesses in the head to clear different rocker shaft systems. He says this method is preferable to grinding the bottoms of the shaft bases to clear the head bolts, as that weakens the supports. View Related Article
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