small block differences. someone want to fill me in please?

all 318s, 71 and earlier (I think)

Wow!! My car might have a forged crank?!? It is a '71 model w/318, but it was actually built in October of '70. I was going to trash this 318 when I get the 360 built, but I guess I better open it up and see what's in there now. :scratch: Maybe I'll hang onto it for a future project.