What motor is this?

Doesn't have anything to do with hot rodding but I figured the knowledgeable people here could help me.
Pulled a motor out of a F600 Ford truck. The guy thought is might be a 352, then said he didn't know. I found these casting numbers so far. On the back side of the block 116-17 and on the intake 8L16. Any ideas?

Thankx

what year is it? could be a 391 industrial, maybe a 370-4v? got a vin? if its new enough, i can find out through the scanner at work.

Thanks for your reply. It actually turned out to be a 370-4v.