|   Part# 13111MO8890.  Specifications:   - Piston measures 3.497.5 Finish bore is 3.500
  - Compression 650
  - Weighs 222 grams.
  - 2.5 to 3 thou Piston to wall clearance.
    **Measurements are done with our Micrometers**  Parts:   - Piston
  - HD 2.075 Long wrist pin
  - 2 spiral locks
  - Complete Ring Set 3.504XC
  - Support Ring.  3465-142
  - 2 Ring Piston 
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