[71Dragtruck]

This is my take on the subject and they way I've had it explained to me. You don't hear the term blueprinted very much anymore and even though it is in referance to exact factory specs, by today's standards a good rebuild is pretty much blueprinted. If you deck and square your block, line bore and torque plate hone it, measure all your clearances, resize your rod ends, cc your heads etc. making sure all is equal cylinder to cylinder, you've pretty much blueprinted your engine.

Like I've said this is my take of the word and some may take it more towards the ORIGINAL factory specs and measurements. As far as clearences go, that would depend alot on the intended use of the engine, and parts used.