Info on a 3970010 block

[Showtime64]

I have a 010 block that I would like to know if it is a 350 or 305. The stamped numbers are V1026TFJ and C90119119 I know that the block was cast on Flint, MI Oct 26 but the TFJ is what I need to figure out what it means. Any information will be greatly appreciated.

 

[motormonkey]

This block casting number has always been listed everywhere I checked as a 350 block. The only exception to this is some reported 302 engines made in 1969, the first year it was offered. These blocks were made until 1975 by my records although they have been listed as being made much later on this site. I have never seen one with a casting date past 1973 or so myself. Your TFJ code indicates a 1970 or later engine. it is unusual as most codes began with the first letter of the division they were made for after 1970(a C for Chevrolet). Likely a truck block having a code starting with a T.