djd@druhi.UUCP (DailyDJ) (09/25/85)
My garage owner neighbor says blueprinting means the engine block has been machined to a new set of specifications to increase some aspect of performance.
donch@teklabs.UUCP (Don Chitwood) (09/25/85)
Blueprinting an engine means that it is rebuilt to match the exact dimensions, clearances and tolerances as specified on the original factory blueprints. I've heard it generally assumed that the occasional long-lived, smooth-running, more-powerful-than-usual engines that are essentially unaltered since leaving the factory are attributable to being the rare case of falling within the ideal factory specs. The beauty of blueprinting an engine, to my thinking, is that you then know EXACTLY what you've got under that hood.