New life for an old 340 (stock stroke)

That's what I said I checked it the other day and I always thought those years mainly had forged but I guess not. And i just like the peace of mind with durability honestly, I'm still thinking though. I dont mind cast crank just if I am going to build it just thought I'd play it safe with forged. I'll double check but I'm pretty sure it's a cast crank cause it has a fine line from the cast molds. And I did not not know that about the bore sizes hmm got some thinking to do.