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Casting Dates???

Forum: C3 Engines, Driveline and Handling

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Casting Dates???

Posted: 4/2/04 6:01pmMessage 1 of 4
c
Former Member
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Hopkinsville, KY - USA
Joined: 3/7/2004
Posts: 2
Vette(s): 1968 Convertible w/ small block
What range of dates is acceptable for the casting dates of the heads and block for a 1968 corvette built Oct. 20.1968?
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Casting Dates???

Posted: 4/4/04 2:07pmMessage 2 of 4
c
Former Member
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Lake Oswego, OR - USA
Joined: 12/29/2002
Posts: 355
Vette(s): 1968 Corvette T-Top Coupe, 427 L71, Rally Red Exterior, Saddle Interior
As you said the casting date was October 1967. The NCRS manual states that the casting date must precede the engine assembly date, and both must precede the vehicle assembly date by 2 to 8 weeks. On an exception basis, they do allow castings up to 6 months, but again, this is on an exception basis and there should be a documented rationale as to why the extended time frame exists.

The big block engine casting number for an October 1967 Corvette would be 3916321.

Mark
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Casting Dates???

Posted: 4/10/04 11:41pmMessage 3 of 4
m
Former Member
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Joined: 8/2/2003
Posts: 178
Vette(s): '69 convertible
Hmm...I'm looking at purchasing a '71 454 with a casting date of September 15th 1970 and car assembly date code shows F05 or January 5th, 1971. So a spread of almost 4 months. So this isn't typical? Should be a tighter spread?
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Casting Dates???

Posted: 4/11/04 3:38pmMessage 4 of 4
l
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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
Should be tighter for a SHOW car. Watch out.

Good luck.
John
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