Thread: 1969 small block coolant drain plugs
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Old 06-30-2016, 08:15 PM
Enoch Enoch is offline
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Default Re: 1969 small block coolant drain plugs
I would say 80 to 90% did not have head markings. I do have some Originals that have L and others that have s on the heads. Also I have NOS ones that have a raise dot That's off center
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