Piston & Rod Assembly
- Connecting rods are available in 4 tolerance ranges. Rod size depends on crank journal bore. A reference number between 1 and 4 is stamped on side of rod's big end bore. Any combination of numbers between 1 and 4 may be found in engine.NOTE: Reference numbers are for big end bore code. Numbers do not indicate rod position in engine.
- Nominal connecting rod big end bore is 2.24" (57 mm). Install piston and connecting rod with arrow on top of piston toward front of engine, and connecting rod oil hole toward offset mark on piston. See Fig 1.