And the beat goes on. During six + decades in the trade, I've heard many say that blueprinting and balancing either doesn't exist or adds nothing to the engine. They usually don't finish the race. Anyone building/experimenting engines has compiled their own specs, "prints" and log. Empirical knowledge. We often shift cyl bore centers to favor major thrust walls after a full sonic mapping. I do have a set of original signed Ardun blueprints among others. Just sent two Hemi Ford flatheads for a salt attempt. My Daytona Nat Champ engs run between 18 & 21 grand steady. They must be carefully machined and balanced. Yesterday a "76 deg crankshaft" (Google it) from England arrived to be balanced. Amongst prox 80 engs here, there's a 12 piston experimental eng here that operates w/o a crankshaft. (Google Axial internal combustion engines)Another fun eng is the Neander. It's easy to become static in our thinking and believe there's only one way to do things. Not true. Stay loose, have fun. David
