Smallblock ID, casting number 3970010

[71 ragtop]

Hello everyone, I have had a smallblock chevy engine in storage for ten years. The casting number is 3970010, now according to the chart this engine can be a 302/327/ or a 350 . my question is is there any way to figure out what it is without knowing the stroke, thanks

 

[Norma]

Trying to figure out the year of my motor the numbers on the block in front of passenger side head is 14N1504 and to backwards DD and then the front of block has theys numbers 10111GMA