I can’t remember the place, but they are sonic chexking 318 blocks (stock bore at 3.91) and boring them out safely to 4.00 and popping in 4.00 stroke cranks. Yep! That’s right! Safely removing .090 of cylinder wall! YIKES!
There was a time I’d call a person a lier for that statement.
I mentioned the same thing in my post regarding the Engine Masters poly builder that used a 318 LA block. I about fainted when I saw .090" or .100" over, but according to him, they're pretty common.
