http://www.ebay.com/itm/330722145356?item=330722145356&viewitem=&sspagename=ADME:L:LCA:MOTORS:1123&vxp=mtr Bought this on ebay several years ago 5 minutes after it was listed for around 400.00 from a quad parts dealer[listed price was 600 or 700. Lines on pad are not from decking but from seller scraping the pad I have seen many stamps where the last # is deep and offset[escpecially corvettes] . Seller swore it was something he had forever and there was no restamping. The 400.00[including him driving 2 hours to meet me] price tag led me to believe it was real as any 4 bolt block in nice condition is worth twice that and normally asking prices for restamps of rare motors are high . Havet seen another L89 block so looking to see if anyone has anexample to compare. Block is dated about a week prior to stamping . It is a factory 4 bolt not a converted block,no crack or sleeves