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JE Pistons Honda K20 Pistons Ultra Series (Set of 4)

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$564 $783.34 In stock

Category: Cylinder Block & Internals

Fits all Honda K20C Engines

Overview

Technical Notes:

  • 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.
HONDA K20C TURBO
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
(mm)		 Rod
(mm)		 C/D
(mm)		 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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Customer Reviews (5.0 / 5 · 5 reviews)

Joshua I. ★★★★★

The crown came already deburred and ready to drop in, which saved me a solid hour of tedious prep work. The 2618 T6 forging feels incredibly dense in hand, and the new skirt geometry has me curious to see how it holds up on the street. These are exactly what I needed for my K20C build.

Isabella B. ★★★★★

The symmetrical skirt design really helps with stability at high RPM—installed them last weekend and they dropped right in with zero prep work. These forgings look clean out of the box.

Scarlett ★★★★★

After running these on the dyno, the 2618 T6 high tensile forged aluminum held up perfectly through back-to-back pulls. The crown requiring no deburring saved me a solid hour of prep work—just dropped them in and torqued to spec.

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