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Acura / Honda JE Pistons 2002-UP RSX TYPE S & 2006 CIVIC Si K20A2/A3 TRADITIONAL FULL ROUND - Piston Kit

Price: $724.30

Select Size:

  • Bore
  • Engine Compression Ratio (CR)
  • Volume Dome CC
  • 86mm = 3.386in 10.8:1 7.1
  • 86mm = 3.386in 11.3:1 9.2

Weight: 0.01 lb

Sku: 204256




  • Crown requires no deburring or preparation
  • 2618 T6 high tensile forged aluminum
  • NEW ASYMMETRICAL FSR forging! State of the art asymmetrical skirt technology reduces friction and mass while providing a more rigid and durable platform (Skirt Style F).
  • In this environment, higher boost levels or heavy nitrous usage necessitate JEs wrought 2618 alloy.
  • FSR pistons include offset pins for quiet operation.
  • FSR pistons feature new Smooth Finished Crown process for excellent flame travel.
  • 1.0 x 1.2 x 2.8mm ring widths (ring prefix JG1) or 1.2 x 1.2 x 2.8mm (ring prefix JC2)
  • .866 x 2.250 straight wall carbon steel wrist pin provided.
  • Pin fitting and wire locks included
  • Rings now included


Part # Bore Oversize Stroke
Head CCs C/R With .040 Dome CCs Gram Footnote Skirt Included
Ring Set#
204256 86 STD 86 139 29.87 50.7 10.8:1 7.1 307 V,M R JC2704-3386
226379 86 STD 86 139 29.87 50.7 11.3:1 9.2 313 U,M R JC2704-3386



Top Compression Ring Thickness 0.0480
Second Compression Ring Thickness 0.0480
Oil Ring Thickness 0.119
Forging Type Round
Series JE Pistons
Piston Head Type Dome
Pin Diameter (IN) 0.866
Wrist Pin Style - floating or press fit Floating
Wall Thickness (IN) 0.150
Ringset Part Number JC2704-3386
Ring Brand ProSeal
Ringset Included Yes
Retainer Thickness 0.063
Retainer Lock Style Wire Lock
Retainer Lock Part Number 866-063-MW
Retainer Diameter (IN) 0.866
Piston Pin Inside Diameter 0.566
Piston Material 2618
Piston Pin Length (IN) 2.250
Piston Avg Wt 307
Pin Offset No
Pin Brand JE Pistons
Pin Part Number 866-2250-15-51C
Pin Included Yes
Pin Diameter (mm) 22.00
Oil Rail Support Included No
Deck Clearance 0.000
Brand JE Pistons