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SUBARU EJ257 BLOCK WITH EJ20 HEAD "FSR"

  • New high strength FSR forging design! JE Pistons new FSR forgings are both strong and lightweight! The new FSR design has undergone extensive on-track testing to ensure flawless performance under the most demanding conditions.
  • 2618 T6 high tensile forged aluminum
  • Specifically engineered for high horsepower Subaru engines.
  • 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 Tru Arc locks included
  • JE Pro Seal Rings Included
SUBARU EJ257 BLOCK WITH EJ20 HEAD
NOTE: NOW COMPATIBLE WITH EITHER OEM OR AFTERMARKET RODS!
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#
291059 99.5 STD 79 130.5 30.7 48.0 8.5:1 -25.5 411 T F JC3104-3917
296349 99.75 0.25 79 130.5 30.7 48.0 8.5:1 -26.0 410 T,M F JC4404-3928
291060 100.0 0.50 79 130.5 30.7 48.0 8.5:1 -26.4 416 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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