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After installing the oil pump and ensuring the amount of torque required to turn the engine is within spec, it's time to "stuff" the pistons. The 5.8 pistons are said to stuff easier than their 5.4 cousins, but the install process benefits greatly from the two-person arrangement. Larry checks the parts and orients them for the install. Larry pushes the piston in and Paul installs the cap. The team tests the amount of torque required to turn over the engine before the oil pump, after the oil pump, and after the pistons are installed. Our engine measured at 0.528 Newton meters before the oil pump, 0.633 after the oil pump, and 18.5 after the pistons. All numbers were well within the specified range.