ford B engine

[Beater]

hello gents, I don't think ive posted in this section before, so here goes. brought home what appears to be a industrial ? ford B engine. it was coupled to a welder and running it not that long ago it feels prity good. I removed all the goveners and extra home made tin work and all that to clean it up. now I do not know much about the B engine, lots about the A however. is there any way to tell without takeing off the pan to see if I have a balanced crank? and with this engine are the mains preasure oiled? anything else I should know feel free to please

edit looks like the original paint under the grime is silver I took lotsa pics if anyone wants to see something else