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JE Subaru 02/05 Impreza WRX, EJ20 (J314437)
92.0mm bore, 75.0mm stroke, 130.5mm rod length, -11.0cc dome volumeJ314437 - SUBARU EJ20 PISTON -11cc 92MM
92.0mm bore, 75.0mm stroke, 130.5mm rod length, -11.0cc dome volume
Part Number: J314437
JE Pistons 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/Dish requires no deburring or preparation and feature smooth flowing radii for excellent flame travel.
Pin fitting, wire locks, and rings included.
Piston Specification:
Make: SUBARU
Engine: EJ SERIES
Bore Diameter: 92.00
Compression Height: 1.287
Compression Ratio with .028" Head Gasket: 8.5:1
Piston Volume: -11
Cylinder Head: EJ205 WRX
Piston Pin Outside Diameter: 0.905
Piston Pin Length: 2.250
Piston Pin Material: 5115
Ringset Included: Yes
Top Compression Ring Thickness: 0.04
Second Compression Ring Thickness: 0.048
Oil Ring Thickness: 0.111
Piston Material: 2618
Forging Type: FSR
Piston Avg Weight: 359
Pin Wall Thickness: 0.180
Piston Type: Dish