LS3-Based 418ci Engine Build - Big Power, Small Budget
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In order for the longer connecting rods (6.125 inches versus stock length of 6.098 inches) to clear the bottom of the bore with the planned crank/rod combination, a carbide bit is used to remove 0.006 inch of aluminum at the bottom edge straight across each bore, after the block is mounted to a traditional engine stand. Once the aluminum is removed, a sanding roll is employed to smooth and radius each cut to ensure that a piston won't nick the area on the downstroke. View Related Article
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