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KB PERFORMANCE Piston Kit - Twin Cam KB411.000

Part Number: DS751286
KB PERFORMANCE
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SKU:
DS751286
UPC:
800745152244
MPN:
KB411.STD
Condition:
New
Availability:
Ships Same Business Day
Weight:
3.20 LBS
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$293.00
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Description

If you're building a high-revving engine or rebuilding after serious track time, piston quality directly impacts reliability and performance. KB Performance's T-5 heat-treated hypereutectic aluminum alloy delivers superior strength while allowing tighter tolerances that reduce piston rock and improve ring seal—critical for maintaining compression and power across the RPM band. With diamond-machined precision and weight consistency within one gram, this kit ensures balanced combustion and longer component life than standard replacements.

  • Material: T-5 heat-treated 390 hypereutectic aluminum
  • Weight tolerance: ±1 gram
  • Dimensional tolerance: ±0.0005 inches
  • Diamond-machined construction
  • Includes: Two pistons, pins, spiral-lock clips
  • Rings: Hastings moly (included)
  • Fitment: Twin Cam KB411.000
  • Installation: Requires proper clearance setup
  • Ring end gap: Requires special attention
  • Tighter fit possible than competitors
  • Reduced piston rock
  • Improved ring seal
  • Extended piston and ring life
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Specs

BORE SIZE IMPERIAL:
3.875'
PISTON MATERIAL:
HYPEREUTECTIC ALLOY
RIDING STYLE:
STREET
COMPRESSION RATIO IMPERIAL:
10.5:1
BORE OVERSIZE - IMPERIAL:
STANDARD
PRODUCT NAME:
PISTON KIT
UNITS:
KIT
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Fitment for KB PERFORMANCE Piston Kit - Twin Cam KB411.000

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