What does the ford engine block number E2NN-6015 tell you?

the first letter stands for the decade

A=40s

B= 50s

C= 60s

D=70s

E=80s

The second number is the year of the decade

N stands for tractor block

2nd N stands for tractor application

6015 stands for tractor block part

letter after 6015 is the revision of the block if it has been changed.

So your number says it is a 1982 tractor block used for a tractor application