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Re: What sealant on 292 Head bolts?
Machined and built literally 100s of these inline six for fleet service back in the day. Some came back later with over 300k miles. Permatex #2 form-a-gasket always worked fine.
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1969 c-10 Step Side Long Bed. I-6 250cid =  = 1969 Pontiac GTO hard top. 400, 4-speed.
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