Piston Rings,3-13/16" Std Size BT Evo U/W Kb Pistons,Hastings Moly Top Rings,2M-4950-Std

MID-63039

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Piston Rings,3-13/16" Std Size Bt Evo U/W Kb Pistons,Hastings Moly Top Rings,2M-4950-Std
  • Hastings Ring Sets are used exclusively in all Keith Black piston sets because of their dependability, quality and performance
  • The oil control rings (lexVent®) are the three piece type that offer superior oil control with less friction which translates into more horsepower and less wear on your cylinder walls
  • Available with your choice of cast type top rings that require minimal break-in time or with moly type top rings that require additional break-in time
  • Sold in sets for 2 pistons
Note: Keith Black hypereutectic pistons require additional clearance on the top ring end gap and must be set up according to the instruction sheet included with Keith Black piston sets.its Evolution 3.812 bore (3 13/16). Standard. Moly top ring.
Piston Rings,3-13/16" Std Size BT Evo U/W Kb Pistons,Hastings Moly Top Rings,2M-4950-Std Harley Mid-USA - K and G Cycles