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The Sunnen CK-10 is one of the best honing machines in the business. Though we went .030 over in each hole, finish honing only removed the final 0.005 inch that was not removed on the boring machine. (A) Before honing the cylinders, a torque plate was installed on the block to simulate an installed cylinder head. The main caps were also installed and torqued to specification; this simulated the stress applied when the heads and crankshaft were installed. The cylinder bores were measured many times while honing to ensure each cylinder was the same size with no taper.