Engine Block Preparation Cylinder Boring
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After verifying the piston size, Troutman bores the cylinders to 4.025 inches. The remaining 0.005-inch is left to be removed during the honing process. It may seem silly to go to the trouble to bore the cylinders an extra 0.030-inch since it only adds approximately 5 cubic inches, but it’s the gain in compression ratio that we’re really after. View Related Article
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