JE Pistons and Rings 100 Bore 79mm Stroke 9.5:1 Comp Subaru WRX / STI EJ257 2004-2017

$560.00
MPN
310938
Manufacturer
JE Pistons
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Description

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


Fitment:
SUBARU EJ257 TIME ATTACK "FSR"
NOTE: NOW COMPATIBLE WITH EITHER OEM OR AFTERMARKET RODS! SOME BLOCKS MAY REQURE CLEARANCING FOR STROKER APPLICATIONS.

Features:

  • 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
  • Rings Now Included

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