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JE Pistons Ultra Series Pistons (FA20 DIT)
Ultra Series pistons combine JE’s premium features and all-new, industry-first technology into an off-the-shelf piston kit! This includes aligned grain flow technology, a proprietary JE technology that aligns the grain flow in critical areas of the piston to improve strength, and several other high-end features.
JE's revolutionary Perfect Skirt coating is one of the many technologically advanced aspects of the Ultra Series. It protects the piston skirts, reduces friction, while eliminating cold-start piston slap and false knock on computer-controlled engines.
All Ultra Series pistons will come standard with ceramic crown coating to help reject combustion heat for durability and better exhaust scavenging characteristics.
Thicker, premium-material wrist pins are another, strength-boosting feature of the Ultra Series line. Combined with unique Grain Flow Optimized forging technology, the Ultra Series is ready for huge power.
FEATURES
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Grain Flow Optimized Forging
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Lateral Gas Ports
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Ceramic Crown Coating
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Perfect Skirt Coating
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Accumulator Groove
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Double Broach Pin Oiling
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Upgraded 9310 Pins and locks
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Carbon Steel Nitride Rings
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SKU
JE Pistons Ultra Series Pistons (FA20)
With over 70 years of experience, JE Pistons is the leader in high performance forged pistons. We've built a reputation that the competition can only follow. JE has a history of manufacturing the highest quality pistons and components that professional engine builders, race teams, and high performance enthusiasts trust and rely on.
| Part# | Bore | Oversize | Stroke (mm) | Rod (mm) | C/D (mm) | Head CC | C/R with .040 | Dome CC | Gram |
| 361314 | 86.00 | STD | 86 | 129.3 | 32.7 | 38.6 | 10.0:1 | -13.2 | 328 |
| 361315 | 86.25 | 0.25 | 86 | 129.3 | 32.7 | 38.6 | 10.0:1 | -13.5 | 328 |
| 361316 | 86.50 | 0.50 | 86 | 129.3 | 32.7 | 38.6 | 10.0:1 | -13.8 | 330 |
| 361317 | 87.00 | 1.00 | 86 | 129.3 | 32.7 | 38.6 | 10.0:1 | -14.4 | 334 |
Vehicle Fitment
- 2015+ Subaru WRX [ VA, VB ]
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.
| SKU | JE Pistons Ultra Series Pistons (FA20) |
|---|---|
| Brand | JE Pistons |
| Product Type | Engine |
| Engine | Engine Internals |