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How do I read date codes?

Forum: C3 Engines, Driveline and Handling

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How do I read date codes?

Posted: 5/29/04 2:07pmMessage 1 of 2
M
Former Member
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Marion, IA - USA
Joined: 4/24/2004
Posts: 317
Vette(s): 1969 Corvette Stingray Convertible. Just bought it from my uncle who owned it since 1971. Fathom green, green interior. 350/300, T400.
I'm kinda new to this. I need a new water pump on my '69 350. I'm hoping to find a rebuilt unit with a correct date code. I looked at one at O'Reilly's it had a date code of L1861. how does this decipher?

Thanks,
Matt
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How do I read date codes?

Posted: 5/29/04 3:31pmMessage 2 of 2
l
Former Member
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COLUMBUS, MS - USA
Joined: 1/11/2004
Posts: 331
Vette(s): 1972 Coupe; 350 4-speed with GM sidepipes; Classic White/Saddle
Hey, Matt.

The '69 smallblocks (all GM, not just Corvette) used only one water pump: GM casting # 3927170. The pump you looked at (L1861) was originally cast December 18, 1961. If it is a Corvette piece, it will carry GM # 3872609: smallblock water pump for a 1961 283 (all hp).

Hope this helps.

John

|UPDATED|5/29/2004 3:31:13 PM (AZT)|/UPDATED|
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