inc. GST

SKU: J324063

BRAND: JE Pistons

LS2 Asymmetrical FSR Dish Top Forged Piston
4.030" bore, 4.000" stroke, 6.125" rod length, -8.6cc dome volume

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Hands down, the best forged piston for your high performance LS engine! Our Asymmetrical FSR (Forged Side Relief) forging is engineered for today’s high power normally aspirated and forced induction LS engines. The exclusive asymmetrical skirt maintains a larger skirt area on the heavily stressed major thrust side, while reducing friction with a smaller skirt on the minor thrust side. The result is a high strength, lightweight piston that outperforms the competition! Note: For applications over 800hp, a thicker wall wrist pin is recommended.

Inc ludes:

  • .927 x 2.250 straight wall carbon steel wrist pin
  • Wire locks

Specifications :

  • Part #: J324063
  • Bore: 4.030"
  • Oversize: .030" LS2
  • Stroke: 4.000
  • Rod Length: 6.125"
  • Compression Height: 1.115"
  • Compression Ratio with 64cc chamber volume: 10.9
  • Compression Ratio with 68cc chamber volume: 10.5
  • Compression Ratio with 70cc chamber volume: 10.3
  • Dome Volume: -8.6cc
  • Gram Weight: 406
  • Footnote: Forged Side Relief / Forced Induction
  • Reconmended Ring Set: JG31F8-4030-2

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