318 Crank

Sorry guys, the quote I was referring to was in soft cover book MOPAR PERFORMANCE by SA DESIGN, has 413 cross ram on cover-1978 era. Don't know if they know what their talking about or not. Looked at casting #'s last night it looks to me to be 2428869-compared a couple. I think this good # but it's hard to see. Are these run of the mill forged cranks or is there some validity to books quote????