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"291" heads date code question

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Old 07-21-2019, 10:53 PM
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2tired
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I was able to pick up a pair of 291 heads that have been worked over. The date code on the one of them is H 18 7. Does that fall into the late '67 or early '68 model year? Intake valve size is 194.
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Old 07-22-2019, 10:11 PM
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provette67
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Early '68. The 291 head was not used in '67
Old 07-23-2019, 05:34 PM
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Thank you.

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