That block was used from 77-79.
350 4 bolt main
1969
1969
That # was used from 70-76.
That block was used from 1980-1985.
1996
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 hp Chevy engine small block made in Canada!
The 350 Chevy engine with the casting number 1493638 was produced in 1975. This casting number corresponds to a 350 cubic inch V8 engine commonly found in Chevrolet vehicles during that era. It is important to check additional identifiers, such as the engine suffix code, for more specific information about its application and specifications.
That block was used from 1968 through1985.
This # 1400207 is not listed-- could be 14010207--1980-85--- 350 4 bolt main truck engine
That is the intake manifold casting number from a 1970 350 CI 300 HP engine.