Block identification

[d1prospect]

Curious about a block a found in the back of my storage. I Know it's a bare 7 Bolt but not sure if it's revised block or not. Is there any cast markings I can look for or just buy both sets of bearings and see which ones work.

 

[DSM-Hottie]

Check the VIN on the block.
http://www.vfaq.com/mods/VINs.html

 

[d1prospect]

Yea I saw this but my block has no labels or etchings with a vin. I know its a 7 bolt just don't know which.

 

[donniekak]

Post pictures of the bell housing end of the block, center main bearing bore, and the girdle center main bearing bore.