Specifications
- Brand
- JE Pistons
- Part #
- 315120
- UPC
- 315120

JE Pistons FA20 - 4UGSE 13.5:1 KIT Set of 4 Pistons
$899.99
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JE Pistons FA20 - 4UGSE 13.5:1 KIT Set of 4 Pistons. Forged from 2618 aluminum for high-demand performance.
Key Features
- Fits Subaru FA20 engines with a 3.386 inch bore.
- Features a 13.5:1 compression ratio, suitable for high-performance builds.
- Forged in the USA from 2618 aluminum for high tensile strength and durability.
- Proprietary Forged Side Relief (FSR) design minimizes friction and saves weight.
- May include an accumulator groove for improved ring seal and reduced combustion gas pressure.
- Optional skirt coating reduces friction, wear, and operating noise.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're rebuilding the engine in your Subaru FA20 and looking to significantly boost performance, a set of high-compression forged pistons is a critical component. These JE Pistons are designed specifically for the FA20 engine, offering a 13.5:1 compression ratio that's ideal for naturally aspirated builds or forced induction setups where maximum power is the goal. They're built to handle the increased stresses of performance driving, ensuring reliability when you push your engine hard.
JE Pistons has been a leader in forged racing pistons for over 75 years, and this set is a testament to that experience. They're forged in the USA from 2618 aluminum, a material known for its high tensile strength, which is exactly what you need for demanding performance applications. The unique Proprietary Forged Side Relief (FSR) design helps minimize friction and reduce weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, these pistons may also feature an accumulator groove to help control combustion gas pressure for better ring seal, and a skirt coating to reduce friction, wear, and noise. This kit includes everything you need to get started: the set of four pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings.
When building a high-performance engine, using pistons specifically designed for your engine and intended use is key. These JE Pistons are engineered for the FA20, ensuring they fit right and perform optimally. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.
Specifications
- Brand
- JE Pistons
- Manufacturer Part #
- 315120
- UPC
- 315120
Frequently Asked Questions
JE Pistons FA20 - 4UGSE 13.5:1 KIT Set of 4 Pistons
