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KB PERFORMANCE Piston Kit KB297.040

Part Number: DS751263
KB PERFORMANCE
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SKU:
DS751263
UPC:
800745064516
MPN:
KB297.040
Condition:
New
Availability:
Ships Same Business Day
Weight:
2.75 LBS
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$234.43
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Description

If you're serious about maximizing engine performance and longevity, piston quality directly impacts your results. The KB PERFORMANCE KB297.040 delivers diamond-machined precision and tight tolerances that reduce piston rock, improve ring seal, and extend component life—giving you the reliability professional racers and high-performance builders depend on. These pistons allow installation with tighter clearances than standard alternatives, translating to measurably better combustion efficiency and reduced wear.

  • T-5 heat-treated aluminum
  • 390 hypereutectic alloy
  • Diamond-machined finish
  • ±1 gram weight tolerance
  • ±0.0005" piston-to-piston tolerance
  • Two pistons per kit
  • Includes wrist pins
  • Spiral-lock pin clips included
  • Hastings moly rings included
  • Tighter clearance capable
  • Reduced piston rock
  • Enhanced ring seal
  • Extended piston life
  • Rings & clips available separately
  • Requires instruction adherence
  • Top ring gap critical
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Specs

BORE SIZE IMPERIAL:
3.498'
COMPRESSION RATIO IMPERIAL:
8.3:1
UNITS:
KIT
PRODUCT NAME:
PISTON KIT
RIDING STYLE:
STREET
BORE OVERSIZE - IMPERIAL:
+0.040'
PISTON MATERIAL:
HYPEREUTECTIC ALLOY
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Fitment

Fitment for KB PERFORMANCE Piston Kit KB297.040

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