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4a. Depending on the machine shop and its equipment, cylinders can be bored square to the deck surface, or as is the case with this small-block here, the cylinders are bored 90 degrees from each other, and 45 degrees off the cam/crank centerlines. d.s.s. racing (st. charles, illinois) machines all of its blocks in this manner as it improves cam timing accuracy, and improves the efficiency of the engine as a whole. a V-8 engine is really comprised of eight, single- cylinder engines. they must be as close to equal to each other in compression, cam timing, geometry, ignition timing, fuel curve, and more for maximum output.