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Author Topic: Which head casting date is correct?  (Read 560 times)
Posts: 88

Decatur Alabama

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« on: January 04, 2012, 12:14:54 PM »

I have an 02e 1968 z28 what would be the correct date range for cylinder heads?
I found some a28 castings, would they be within range?
« Last Edit: January 04, 2012, 12:40:55 PM by Ramjett54 » Logged
1968 Z28
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« Reply #1 on: January 04, 2012, 01:19:05 PM »

Don't know what is considered acceptable but here is mine for example.  Have an original 1968 07C Z28 that has an engine build date of 06-19 and the heads are dated E-9-8 and E-14-8.

Jerry G.

Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles
Petes L48
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« Reply #2 on: January 04, 2012, 01:24:22 PM »

Do you have the original block, or are you building a "date correct" engine?  You should be comparing the engine build date (stamped, and assuming it is not a fake/restamp) with the head casting dates.  Obviously the heads need to be cast earlier than when the engine was assembled.  This old thread and links found within may help, I think it has generally acceptable date spans:
x66 714
Posts: 267

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« Reply #3 on: January 04, 2012, 01:40:27 PM »

I have an 02E 68 z/28 & one head is "A" late & the other is a "B" early. Can you contact me at I have aquestion for you also. Thanks, Joe

See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969
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