Piston & Rod Assembly
- Each rod is sorted into one of four tolerance ranges from 0-.0006" (0-.015 mm) in .0002" (.005 mm) increments. Size depends on crank journal bore. Number, between 1-4, is stamped on side of rod big end. Any combination between 1-4 may be found in any engine.NOTE: Reference numbers are for big end bore code and DO NOT indicate rod position in engine.
- Normal connecting rod large end bore size is 2.24" (57 mm). Piston and connecting rod must be installed with arrow on top of piston toward front of engine and connecting rod oil hole toward offset mark in top of piston. See Fig 1 .