JE Pistons and Rings 99.75 Bore 79mm Stroke 8.5 Comp 1999+ Subaru EJ25 SOHC

SKU: jep314342
Availability: Out Of Stock
Type: Engine Pistons/Rings
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Regular Price: $821.78 - Instant discount: $78.23 = $743.55
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Subtotal: $743.55
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Part #: 314342

JE designs are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy.


STD Bore: 99.5mm
Deck Clearance is .015 below deck

  • Dome/Dish requires no deburring or preparation
  • 2618 T6 high tensile forged aluminum
  • Dome and dishes feature smooth flowing radii for excellent flame travel.
  • 1.2 x 1.2 x 2.5mm ring widths.
  • .905 x 2.500 (Round Forging) and .905 x 2.250” (FSR Forging) straight wall carbon steel wrist pin provided.
  • Pin fitting and Tru-Arc locks included
  • Includes 4 piston / 4 rings

  • California Prop 65 Warning:
     Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

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