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Old 03-21-2024, 08:31 PM   #2
AussieinNC
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Join Date: Jun 2017
Location: Cherryville, NC
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Re: Hairline Crack in LM7 5.3 Block

Grab yourself some of these and add to the cooling system....they will work on your tiny weep...

GM (12378255) Available fro Amazon...or GM)


5 pills per pack....follow package instructions...

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