Nope, that is just a myth. I have seen tests results showing there is no date cutoff, thin castings are just random in all year 440s. >From: Leo Jormanainen <lexa@xxxxxxxxxxxxxxx> >>Hi, > >'76 and later 440 cyl. blocks are throw away blocks, thin wall castings. >Max. over bore is 0.020". > >Leo _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com