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#1
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I think they first appeared in '69 on the 302 in a dull finish, then in '70/'70.5 on the LT-1's in Vettes and Z's. I believe you could get the on all LT-1's or HP 350's through '80 or so.
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#2
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Push in rubber cap started in 1971. Those are 1970 or earlier.
Peter
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Pete Simpson 1962-2013 RIP Owen Simpson Eric Simpson |
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