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JE Pistons
JE Pistons Ultra Series Honda K20 Piston Set (of 4)
Fits Honda K20C Turbo

Bore Options::
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Product Description


  • Crown requires no deburring or preparation
  • 2618 T6 high tensile forged aluminum
  • NEW SYMMETRICAL K20C FSR forging! State of the art skirt technology with a dedicated skirt designed to reduce 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 JE's wrought 2618 alloy.
  • FSR pistons include offset pins for quiet operation.
Ultra Series Includes: 

Grain Flow Optimized Forging 
Lateral Gas Ports 
Ceramic Crown Coating 
Perfect Skirt Coating 
Accumulator Groove 
Double Broach Pin Oiling 
Upgraded 9310 Pins and locks 
Carbon Steel Nitride Rings 
OEM K20C Connecting rod pin bore must be honed to accept 22mm (.866") wrist pin.
Part # Bore Oversize Stroke
Head CC's C/R With .040 Dome CC's Gram Footnote Skirt Included
Ring Set#
361278 86.00 STD 85.9 143.66 32 51.3 10.0:1 0 356 ULTRA F JG1204-3386
361279 86.50 0.50 85.9 143.66 32 51.3 10.0:1 -0.6 360 ULTRA F JG1204-3405

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