can anyone help me out with these # jf235906 what is this roller or not or what year and so on; thanks in advance

 

Block casting numbers are on the lower rear area, should start with a sequence like E7TE or F4TE..

 

e7tf shoot me straight

 

Here's a nice casting number decoder... Decoding Ford casting part numbers

The problem with these numbers is they really don't tell you what motor you have, you need to identify the family by other means. The basic engine block ID is 6015, but this sequence applies to all engine families. If you have a 302 block the E7 casting will be roller ready, but if it's a 351 block it's not, and same goes for the big block. Do you know generally what motor you have?