Chevy 350 Block ID

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Aug 16, 2005
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El Dorado County CA
I guess I suck at Internet searching. After an hour I am unable to determine the characteristics of my 350.

The block ID is 3870010.

What year is the motor and is it a 2 or 4 bolt main?

Thank you,

BigJim
 
Are you sure that's the Number? I looked it up and I can't find any reference for 3870010.
The closest I found was 3876132 and that was for a 327.
Did you get the number off the machined pad in front of the passenger side cylinder head?

Cheers
 
It may possibly be a 3970010.....that's a '69 - '79 block that came in several variations......and both 2 and 4 bolt main. For what it's worth its a desirable block.
 
Could be one of the following, all listed as 3970010
69 302 4 bolt main from a camero
69 327 truck and commercial
69-80 350 2 or 4 bolt main
Best bet is to drop the pan and take a look
 
X2 what dGangle says.....
 
Are you sure that's the Number? I looked it up and I can't find any reference for 3870010.
The closest I found was 3876132 and that was for a 327.
Did you get the number off the machined pad in front of the passenger side cylinder head?

Cheers
In bright sunlight with glasses on the number is 3970010. Not 387etc.

Thanks for all the help.

BigJim
 

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