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’66 442 Tri Carb Questions

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Old 05-11-2008 | 08:52 PM
bocoogto's Avatar
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I recently aquired a '66 Olds L69 manifold. It is casting number 393238 and has"AZ" letters cast near the front and a large letter "F" cast on one of the runners. My question is date code. It has a pad that appears to be a date code with "151" on it. Is this the day of the year?


Were these manifolds all the same, or were there different versions---thinner/thicker castings, etc.?
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