Before final assembly, all D.S.S. Racing short-blocks are balanced on a Hines Eliminator computerized spin balancer. The crankshaft is spun at 500 rpm with adjustable bob weights. The bob weights are then made to be the same weight as the specific pistons, rods, rings, and rod bearings for each rotating assembly. The computer senses the heavy and light part of the crankshaft and tells you where to drill or add material to make it balanced. Not only does it tell you in degrees where to remove, but also how deep to drill. There is no guesswork. A final check spin indicates you are balanced to spec and ready to go.