J Jon New member Oct 3, 2009 #1 It's probably not ending in (6). But it has YB stamped on the passenger side front of block under the head. I looked it up if its (0) its 75-76 350, but YB means 65 389. The casting looks like it ends in (6) THat Is why I'm here!!
It's probably not ending in (6). But it has YB stamped on the passenger side front of block under the head. I looked it up if its (0) its 75-76 350, but YB means 65 389. The casting looks like it ends in (6) THat Is why I'm here!!
