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Old Aug 10, 2012 | 07:31 PM
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Default Engine Numbers

I have a friend that has a corvette with this engine in it .
Block casting 3932386 Date J168
Heads casting 3991492 Date J259

Where the vin number should be it has 61909016 I think this is replacement number engine ??? If so does anybody know what the number say?// And can you tell me what the other number fit Thanks Allot in advance I told him you guy would know , Thanks Piper
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Old Aug 10, 2012 | 08:39 PM
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ttt
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Old Aug 10, 2012 | 08:45 PM
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The source production code on the front would help, but it is a 68,69 engine with 69 heads by the dates.

Last edited by wombvette; Aug 10, 2012 at 08:51 PM.
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Old Aug 10, 2012 | 09:10 PM
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Originally Posted by wombvette
The source production code on the front would help, but it is a 68,69 engine with 69 heads by the dates.
I found that the Block casting 3932386
could be a 302,327,or 350 engine Any way to tell witch one it is??? Also it said the head are 202/160 ,i think of a 350. I do not know what number you are talking about Can you tell me where it is please?? Thank You piper
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Old Aug 11, 2012 | 01:20 AM
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Front of the block, on the flat pad, RH side. Code will be the Plant, date, and Code.

Example ( F0821HE )
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Old Aug 11, 2012 | 02:41 PM
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Originally Posted by wombvette
Front of the block, on the flat pad, RH side. Code will be the Plant, date, and Code.

Example ( F0821HE )
What is on that pad is the number i put in my first post 61909016 and most people say that is a replacement block number ,i just want to know if you can tell anything from that number
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Old Aug 11, 2012 | 02:42 PM
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ttt
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Old Aug 11, 2012 | 03:00 PM
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If there's no assembly code then it's anybody's guess what it is.
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Old Aug 11, 2012 | 05:15 PM
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Old Aug 11, 2012 | 11:11 PM
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I think you have about all the information you are going to get. Looks like it was a replacement engine with a sequence number. That number means nothing to us. Probably a short block. The heads are a year later, so they probably didn't come on it. Check the bore and stroke and determine if its a 302,327,or 350.
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Old Aug 12, 2012 | 08:03 AM
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you can tell cubic inches by the shape of the rear crank flange
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Old Aug 12, 2012 | 08:25 AM
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Thanks to all of You
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