[Bill Pritchard]

Unless you're out to get the last bit of ultimate performance from your engine, or the 24K miles have been 'hard' miles, it's unlikely you really need a complete rebuild. Why not just pull the heads, have them freshened, and put them back on. If you still have oil consumption problems, then you will really know you need a short block rebuild. And as Dean says, any competent machine shop these days can leave the stamp pad untouched when decking the block.