JE Pistons SUB STI EJ257 99.75mm Bore CR 8.5 KIT Set of 4 Pistons - 296348
Upgrade your Subaru EJ Series engine with the JE Pistons Piston Kit. Engineered for peak performance and durability, these pistons are forged in the USA from high-strength 2618 aluminum. Perfect for high-demand applications, they feature a proprietary design to minimize friction and power loss. Each kit includes four pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings.
- Forged from 2618 aluminum for high tensile strength
- Optimized for specific engine applications
- Minimizes friction and power loss
- Includes premium piston rings and wrist pins
- Made 100% in the USA
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import and sport compact applications. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons? performance is proven in victory lane time and time again. Equip your engine with the best in forged pistons.
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Designed specifically for each engine and use application to provide optimized performance durability
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
- Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
- Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
- Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
- Made 100% in the USA
- Piston Series: JE Pistons
- Cylinder Head: EJ257 STI
- Bore Diameter: 99.75 MM
- Piston Head Type: Dish
- Compression Height: 1.209 IN
- Piston Volume: -17.00 CC
- Piston Material: 2618
- Piston Quantity: 4
- Forging Type: FSR
- Piston Average Weight: 405 GR
- Ring Set Included: Yes
- Top Compression Ring Thickness: 0.0480 IN
- Second Compression Ring Thickness: 0.0480 IN
- Oil Ring Thickness: 0.0995 IN
- Wrist Pin Outer Diameter: 0.905 IN
- Wrist Pin Length: 2.250 IN
- Wrist Pin Wall Thickness: 0.180 IN
| Brand | JE Pistons |
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