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ZINC additives and hardened valve seats necessary?
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10-03-2015, 04:29 PM
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corvette8n
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Join Date: Jul 2010
Location: 36 miles north of Albany NY
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Re: ZINC additives and hardened valve setats necessary?
Hemmings sells it own zinc rich brand online $54.00 for 6 qts., it ain't cheap.
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