jim1932 Well-known member Apr 17, 2020 #1 I don't recall seeing anything like this on the other Block I have. This block still had standard size pistons. Are these Factory marks (other than the casting numbers)? Attachments IMG_2983.jpg 34.8 KB · Views: 75 IMG_2982.jpg 40.8 KB · Views: 67 IMG_2981.jpg 51.5 KB · Views: 68 IMG_2929.jpg 71.5 KB · Views: 62 IMG_2928.jpg 45.1 KB · Views: 61
I don't recall seeing anything like this on the other Block I have. This block still had standard size pistons. Are these Factory marks (other than the casting numbers)?
DavidG Well-known member Apr 17, 2020 #2 Even with standard bore, it likely had a valve job or two along the way and some of those could have been from that.
Even with standard bore, it likely had a valve job or two along the way and some of those could have been from that.
