It's a 4" bore block. Has been used for 302, 327, and 350 engines.
The code "GM 37 3970010" likely refers to a specific part or casting number associated with a General Motors engine block, particularly from the year 1937. The "GM" indicates the manufacturer, while "37" specifies the model year. The number "3970010" is a casting number that identifies the block's design, specifications, and compatibility with certain GM vehicles. This number can be used to find more information about the block's history and applications in GM cars or trucks.
A81 should be January 8, '71,'81,'91.
Gm 3970010 the model?
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 #
it is a 1969-1979 motor it was used in cars, trucks, and vettes
those numbers are the date that it was built k=month .... 24=day ..... 5=year November 24 1965 or 1975
350 and 327 [1966 - 1980]
The numbers you provided suggest that your Chevrolet 350 engine was manufactured in 1980. The casting number GM 3970010 corresponds to a 350 cubic inch engine produced between 1969 and 1980, with the suffix code V0817TBC indicating that it was assembled in August 1977 at the Van Nuys plant. Therefore, your engine most likely dates back to 1980.
4bolt 350ci
1968------327 & 1969-79 ----350
a 350 or 327 that is the question. A 350 or a 327
The GM engine with the casting number 3970010 is a 350 cubic inch V8 engine, commonly found in various Chevrolet vehicles from the late 1960s to the early 1980s. The stamped numbers "K1114TXL" indicate that the engine was manufactured on November 14, likely in the year 1979, with "TXL" designating it as a specific engine variant. This engine was often used in passenger cars and light trucks.