Pistons - Rosss Forged


  • Set
  • 3 Ring Pistons
  • 3-5/16" Bore x 4" Stroke
  • Includes Metric Moly Rings
  • Aircraft quality pins weighing 120 grams which are retained by spirolox.
  • Minimum piston to wall cleanance .0045"m .004" if you use deck stress.
  • The best pistons for your Flathead at the best price are Ross.  A faithful reproduction of Are Sparks' original design.  Machined on special Ross flathead forgings for maximum strength and minimum weight.
  • Stocking sizes are from 3-5/16" x 3-3/4" to 3-3/8" x 4-1/8"

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  • Item: 111

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