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KB PERFORMANCE Piston Kit - FX/FL KB263.STD

Part Number: DS751201
KB PERFORMANCE
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SKU:
DS751201
UPC:
800745060976
MPN:
KB263.STD
Condition:
New
Availability:
Ships Same Business Day
Weight:
2.75 LBS
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$228.43
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Description

If you're rebuilding a big-twin Harley or pushing your FX/FL platform to the limit, piston quality directly impacts reliability and ring seal under boost or sustained high RPM. KB Performance's hypereutectic aluminum pistons are diamond-machined to extreme tolerances and designed for tighter installation than OEM or competitor options, which means less piston rock, superior ring seal, and longer service life between rebuilds. This kit gives you the precision engine builders trust.

  • T-5 heat-treated 390 hypereutectic aluminum
  • ±1 gram weight tolerance
  • ±0.0005" piston-to-piston tolerance
  • Diamond-machined finish
  • Fits FX/FL platforms
  • Two pistons per kit
  • Includes wrist pins
  • Includes spiral-lock pin clips
  • Includes Hastings moly rings
  • Allows tighter installation clearance
  • Reduces piston rock
  • Improves ring seal
  • Requires professional installation
  • Read included instructions for clearance specs
  • Replacement rings available separately
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Specs

COMPRESSION RATIO IMPERIAL:
9.0:1
UNITS:
KIT
BORE OVERSIZE - IMPERIAL:
STANDARD
PRODUCT NAME:
PISTON KIT
RIDING STYLE:
STREET
BORE SIZE IMPERIAL:
3.437'
PISTON MATERIAL:
HYPEREUTECTIC ALLOY
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Fitment for KB PERFORMANCE Piston Kit - FX/FL KB263.STD

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