[rbohm]

what blueprinting is, is setting all clearances to the design specs. example, main bearing clearance ranges from .002-.003, as i recall the design spec is .0025. that means that all main bearing would be set at .0025 clearance. also all other tolerances would be virtually 0. stroke would be set at 2.87 for each cylinder, deck heights all the same, crank throws indexed so each is at exactly 90 degrees, etc, etc. all that is not needed for a street motor, and in fact not needed for most race motors as well. that is why i say dont spend the money on blueprinting for a street engine. balancing ont he other hand is always worth the money as you improve bearing life markedly.