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SUBARU 2004+ IMPREZA STI , 2005+ FORESTER XT, LEGACY GT, 2006+ WRX EJ257

  • Time Attack FSR Pistons now available!
  • 2618 T6 high tensile forged aluminum
  • 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.
  • 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 straight wall carbon steel wrist pin provided.
  • Pin fitting and wire locks included
  • Rings Now Included
SUBARU EJ257 "ROUND" FORGINGS
Part # Bore Oversize Stroke
(mm)		 Rod
(mm)		 C/D
(mm)		 Head CC's C/R With .040 Dome CC's Gram Footnote Skirt Included
Ring Set#


SUBARU EJ257 TIME ATTACK "FSR"
Part # Bore Oversize Stroke
(mm)		 Rod
(mm)		 C/D
(mm)		 Head CC's C/R With .040 Dome CC's Gram Footnote Skirt Included
Ring Set#
291063 99.5 STD 83 130.5 28.7 57.0 8.5:1 -21.5 398 T F JC3104-3917
291064 100 0.50 83 130.5 28.7 57.0 8.5:1 -21.5 404 T F JC4404-3938
291061 99.5 STD 79 130.5 30.7 57.0 8.5:1 -16.5 NEW T F JC3104-3917
291062 100 0.50 79 130.5 30.7 57.0 8.5:1 -17.3 NEW T F JC4404-3938

- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.

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