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Hairline Crack in LM7 5.3 Block
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03-22-2024, 09:35 AM
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Willie Makeit
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Join Date: Oct 2013
Location: Alabama
Posts: 1,207
Re: Hairline Crack in LM7 5.3 Block
it looks like someone installed a head bolt with water or oil in the hole. the bolt pushing down on the water/oil caused a hydraulic pressure spike and cracked the block.
Willie Makeit
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