I'm not from Missouri but you would still have to show me a standard bore block that has worn out two sets of pistons and still no cylinder wear. Pistons almost always out wear the cylinders; I've even reused over size pistons (aluminum) when it came time to rebore the block. Never heard of a hard block!
Originally Posted by emptyoilcan
I suppose a quirk of metal or casting that causes a block to be hard.ie not wear. It is on at least its second set of standard pistons no wear or taper in cylinders.

Last edited by WillH; 01/08/2011 2:10 PM.