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Old 03-18-2007, 04:32 PM   #1
Broken_down?
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block casting numbers?

01 0
02 0
146

Found on the drivers side next to the oil filter on the side of the block. I was looking for some numbers to confirm this 350 came out of a 71 like I was told.

thx
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Old 03-18-2007, 05:01 PM   #2
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Re: block casting numbers?

Funny # it should be a string of #s 7 or 8 digits long. Something like 3858618. Infact the # should start with a 3, a # that starts with a 1 for with a few exceptions is an 1980 and newer motor. Remember that somtimes 6 look like 8s and 8 look like 3s, sometimes the casting of the #s is a bit rough...

Hope this helps,

-Fred
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Old 03-18-2007, 05:08 PM   #3
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Re: block casting numbers?

Am I looking in the right place?
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Old 03-18-2007, 05:13 PM   #4
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Re: block casting numbers?

SBC on the passenger side bellhouseing flange looking from the top of the motor.
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Old 03-18-2007, 05:15 PM   #5
blukangoo
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Re: block casting numbers?

Should be right here just like CrashEd said.
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Old 03-18-2007, 07:44 PM   #6
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Re: block casting numbers?

Well the number was 3970010:

This website said it is:

150 3970010 350 CID 300,350,370 HP 1970 Normal 4 Bolt Main Corvette and late 1969


This is pretty good right?
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Old 03-18-2007, 08:02 PM   #7
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Re: block casting numbers?

If it is out of a truck, should be 4 bolt main block. 3970010 is a common # used for 350 block.
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Old 03-18-2007, 09:49 PM   #8
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Re: block casting numbers?

I came up with three posibilities for the casting #, I would assume that it is the second one, however it can be crossrefrenced by getting the casting #'s off of the heads. On a long shot you might just have gold on your hands

Casting #...ci.......year....bolt......type/usage
3970010....302.....69........4........Z-28 Camaro
3970010....327.....69........2........Trucks and industrial
3970010....350.....69-80....2 or 4..Dealer Replacement

Last edited by KFreddy; 03-18-2007 at 09:50 PM.
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Old 03-18-2007, 10:18 PM   #9
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Re: block casting numbers?

Where are the head cast numbers? On the front or side?
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Old 03-18-2007, 10:24 PM   #10
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Re: block casting numbers?

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Originally Posted by Broken_down? View Post
Where are the head cast numbers? On the front or side?
Under the Valvecover between the rockers. David
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