Heater core date code?

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**WorkinProgress** · #1 11-04-2020, 02:14 AM

Harrison cores are what GM used. The end tank opposite the necks, will say Harrison and will have a date code. It will be the last two digits for the year, followed by a letter. The letter represents the month.

- Warren

**R68GTO** · #2 11-04-2020, 02:54 AM

Thanks guys. I'm assuming mine is original but will be nice to document the date code.

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