What is GM casting number 3970010 4 bolt mail block?

On the left side I have H4O 010 020 there is also A221 right above this which is stamped a lot smaller to the right side of the block there is 1 020 G51 other than that i did not see anything but the block does have some oil that is turned to sludge on it.

Where was the SBC 3970010 Hot Rod block made?

It is one of the many sb Chevies produced from 68 thru the late seventies, cast at the Saginaw Mi. gray iron foundry, assembled in Flint Mi. engine plant. They came in two or four bolt. Only way to be sure is pull the pan.

Is the 327 3970010 block a good block?

Everybody have a great day! the only difference is the 327 3970010 block was a truck industrial motor as you can see. SBC #3970010 is this a good block ? Yes it does. Is there a code# around the oil filter area that would tell you what the motor was made out of, is so what codes tell me what? Again thank you for your time I appreciate it.

What are block casting numbers for small block Chevrolet V8?

Block Casting Numbers for Small Block Chevrolet V8 Block Casting Numbers for Small Block Chevrolet V8 Chevrolet Small V-8 Cylinder BlockCasting Numbers 1955-1985 These listings are always a work-in-progress. If you have any documented info that can be added to these pages, please contact me and let me know. Casting # C.I.D. Year

What year is a 350 Chevy engine with casting no 3970010?

What year is a 350 Chevy engine with casting no 3970010? In 1968 they made 327’s with this casting number but they were only 2 bolt main. Then from 1969 – 1979 they made 350’s with this number and they were either 2 or 4 bolt main. If it’s a 4 bolt main, then you know it’s a 350. To determine exactly what you have, you need the block “suffix code”.

Is the engine block 3970010 from a vette?

Just bougt a fixed up 350 with casting nr 3970010 with 4 bolt mains, is this a LM1 or something else, Mikes page says a LM1 with casting number 3970010 os only a 2 bolt main. Could my block be from a Vette? the 010 was a 350 from 69-74?, could be out of almost anything.

Is the Chevy 3970010 the same engine as the 3970004?

As far as the 3970010 and 3970014, this follows a pattern that Chevy had through the entire 70s production. They always had two almost identical castings to use to build their engines.