Thread: Factory installed spark plugs 1969 BB with cast iron heads.
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Old 10-30-2025, 05:11 PM
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daveg daveg is offline
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Something to look for

Pic 1 is 1969 dated. Note "NEW", no "GM" and "ACNITER" is bigger and "SPARK PLUGS" is smaller.

Pic 2 bottom is 1973 dated and note "GM" is added.
Also note "NEW" is gone, "ACNITER" is smaller and "SPARK PLUGS" is bigger.
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