I need to clean the head bolt threads going into the block on a 4.3 vortec and I'm not sure what size tap I need anyone know?

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Asked by Mar 29, 2015 at 04:35 PM about the 2002 Chevrolet Blazer 2 Door LS 4WD

Question type: Maintenance & Repair

2 Answers

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7/16-14 thread

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