I would get it out of the block, thread it into a cast-iron fitting, clamp the fitting into a vise, apply heat with a torch or inductive heat gun (best choice) and bend preferable with a radiused pipe bender. Let cool, test fit.
Another option would be to mark the pipe where you need to bend. Cut with saw 80% through, fold together and weld.

It doesn't look like it'll need much.