Well, it been a while, and I am working from memory, but, the 010 at the end tells me heavy duty, maybe truck. Most likely 70's, and a 4 bolt main engine. It may even have had a 186, or 041, or, 441, casting cylinder head on it. All 3 are desireable units today.
casting number 3970010 is a 350 block from 1969 - 1979 but in 1969 302 and 327 have the same casting # and im not to sure about the other #
350 and a 327
i called the Chevy dealership and they told me the year
The back of the block will have a series of letters and numbers cast into it. That is what determines the date.
Chevy block with casting #3970010 is not a 4-bolt main block---1968--327 cid/250hp A body car---1969-79-350 cid/185hp--car , truck , vette.
Couldn't find that number on Mortec, however 3970010 is a 350.
The casting number 3970010 is associated with a Chevrolet small-block V8 engine block that was produced primarily during the years 1969 to 1979. This block was commonly found in various Chevrolet models, including the Camaro and Corvette. It is notable for its compatibility with both performance and standard applications.
1977
you need the date code on the side of the block it will be a series of numbers and letters first its the month, then day, then year
3970010 can be a 350 two or four bolt block.
Blocks that have more nickel have 010 or 020 under the timing cover, meaning 10% and 20% nickel.
A small or big block Chevy have a casting number on the top of the block behind the driver side head. MorTec has Chevy casting numbers listed online.