Thread: Chevy S.B. Water Pump 6263701 cast number A-8 cast date?
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Old 04-01-2024, 10:41 PM
RALLY RALLY is offline
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I do have another water pump i recently purchased that has a 12 after the date. Good to know that info too. I know some of the S.B. Chevy heads had an X on them which was a foundry ID. Got this info from the late GM engineer John Hinckley.
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