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Tony McAfee assembled our engine, and he builds most of the Dart SHP short- and long-blocks. He checks every critical measurement as he builds each engine. Here, he uses a dial-bore gauge to compare the main bore with the bearing installed to the outside diameter of the main journals of the crank. McAfee likes these clearances to be around 0.003 for an engine that will see a combination of road racing and street use, such as with our Laguna.