5T is 1975 year, 440 is engine size, E cast crank, HP is high performance,
3 14 is the build date. I'm guessing the cast date and the cast numbers have been groud off?
What's it worth, sorry without at least the main caps zilch, at least that's what I'd pay for it. It is strange tho, it hasn't even got the cast in strengthing ribs above the core plug holes that are found in most post 70 blocks.
I gave a similar 440 away to a friend that had a set of main caps.
I figured with the amount of $'s required to line bore it, plus having to get a set of caps, it might be worth $50. Scrap value is worth about $20 max.