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The crankshaft is from the rarely seen Olds 330. Few know about these '60s-era cranks, and they are getting fairly rare. As Dick says, "They're still not as rare as the 455 steel cranks, but they're getting harder to find." These forged-steel parts have some quirks (we'll get to that later) but offer a great starting point for a solid 92-octane Olds 350 buildup. Miller has some of these cranks in stock if you're searching. The crank was resized by Crankshaft Specialties in Memphis, TN, and the rod journals were turned down to 2-inch diameters for use with common small-block Chevy rods.