Hi, It's not worth the expense, the structural integrity of the block is lost. The bores will "shift" and do all kinds of neat things. Leo QCI At 03:10 PM 11/06/2002 -0500, you wrote: >Couldn't you sleeve those and maintain bore size? D^2 > >Quoting 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 > > QCI