As yellowrose stated, installing the crank and other components in the block is the only way to accurately determine your deck height. All your components, even though have a "book" measurement, its often only a reference, and can vary considerably once machined and in your hand because of the +/- production tolerances they have to produce them. The biggest variable is the crank stroke, which can often be off the factory stroke more than you can imagine, NHRA Stock Eliminator and Super Stock rules allow .012" in stroke allowance because they have seen them vary that much straight from Detroit. So, unless its already been reground before and properly indexed and had the stroke corrected. Your deck height can vary significantly from cylinder to cylinder. So until your machinist has all these components in hand and installed in your block, he's only make an assumption.
