Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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Dan,
To be safe, keep the casting dates of the heads within 6-8 weeks of the assembly date of the engine.. No one will give it another thought. ![]() The casting date of the block has no real relevance to that of the other components so long as none of the dates are after the assembly date of the engine. ![]() |
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