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The new GMPP blocks have bore sizes that range from 4.000 inches to 4.002 inches. They are honed in-house to ensure they're all the same 4.003-inch diameter and have exactly 0.0015 inch piston-to-wall clearance with Smeding's own-brand pistons. A torque plate is bolted to the block with dowel pins and a gasket before Dan Moody uses a diamond cutter hone and coolant rather than a stone and oil. Computer-controlled machinery aids the process.