From the turbocharged G54B-4G54 Astron engine department of Tool of the Week comes the digital scale, shown here in the process of measuring more Astron connecting rods than we have engine blocks to put them in. As yet another Mitsubishi engine buildup is in the near future, a small investment in an inexpensive digital scale seemed a good way to figure out was going on with two sets of connecting rods. One set of rods appeared to have been worked and balanced, and was also bushed for floating piston pins that held on a set of beat forged pistons. The other set of rods was stock except for being resized in preparation for a rebuild. Both sets of rods were fitted with ARP rod bolts. The digital scale was used to get a general idea of mass, and produced surprisingly repeatable results despite its low price. Actual connecting balancing requires a fixture that measures the mass at one end or the other, and is either made or sold separately. What the digital scale revealed was that the worked and bushed set of rods were all within one gram of each other, scaling in at around 805 grams each. Bonus! The factory connecting rods were as far as 18 grams apart, with the heaviest one scaling in at 843 grams. Quick math made for a 128 gram total weight difference between the two sets of rods. For under 20 bucks, the digital scale helped determine which set of connecting rods to haul into the machine shop, along with a crankshaft and yet another engine block.