According to my book, that means .008 oversized lifter bores. ----- Original Message ----- From: "Bill" <Y1TopBanana73@xxxxxxxxx> To: "62-65 Mopar List" <1962to1965mopars@xxxxxxxxxx> Sent: Monday, December 22, 2008 10:12:39 PM GMT -05:00 US/Canada Eastern Subject: Block Markings So I finally got off my lazy a$$ and am doing the cam in the Coronet.In tearing it apart I noticed a diamond stamped in the block on the block deck surface, in front of the left head, up near the intake. Does this have any significant meaning? I know the short block in this car is not original. Thanks Bill M 65 Coronet 500 'vert [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.