The LA Motor "Block"

mopardude318 said
View attachment 1715696897 I checked with a pencil on another ‘90 casting date 360 block. I can’t fit a pencil between 2 cylinders, just the sharpened tip.
Click to expand...

May not be a good go no go for the small blocks, then. Looks like sonic testing may be the only way.....as it should be anyway.