Freeze Plugs
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Joined: Dec 2002
Posts: 1,428
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From: peoria, az
They are actually plugs to remove sand from casting. They are usually in the block down the side andrear,sometimes front. They can also be found at the ends of the heads. No they don't need to be changed unless they start leaking. The coolant will eventially eat them since they are in the water jackets.
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