Specifications
- Brand
- JE Pistons
- Part #
- 311985
- UPC
- 311985

JE Pistons LS ASYM FT 4.000STRK Set of 8 Pistons
$975.74
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JE Pistons LS ASYM FT 4.000STRK Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.
Key Features
- Set includes 8 forged pistons for V8 LS engines.
- Forged in the USA using 2618 aluminum for high tensile strength in performance applications.
- Features a 4.125 inch bore size and a flat top design with a -5.00 cc volume.
- Proprietary Forged Side Relief (FSR) design minimizes friction and saves weight.
- May include an accumulator groove to reduce combustion gas pressure and improve ring seal.
- Optional skirt coating reduces friction and wear on piston skirts and cylinder walls.
Product Details
Forged from 2618 aluminum, these JE Pistons are built to handle the demands of high-performance LS engines. This set is designed for a 4.125 inch bore and features a flat top piston with a -5.00 cc volume, making them suitable for specific compression ratio targets in performance builds. JE Pistons brings over 75 years of experience to the table, ensuring that each piston is crafted for both durability and optimal power output.
JE Pistons utilizes a proprietary Forged Side Relief (FSR) design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight in the process. Depending on the specific application, these pistons may also include an accumulator groove to manage combustion gas pressure, preventing ring flutter and improving ring seal for consistent power delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life. Every component is forged and machined in the USA, guaranteeing a well-built part ready for serious performance.
This set includes eight pistons, the correct quantity for a standard V8 engine. While these pistons are designed for high-demand applications, it's important to note they are not CARB approved and cannot be shipped to California. For optimal performance and longevity, always refer to the manufacturer's installation instructions and recommended assembly procedures.
Specifications
- Brand
- JE Pistons
- Manufacturer Part #
- 311985
- UPC
- 311985
Frequently Asked Questions
JE Pistons LS ASYM FT 4.000STRK Set of 8 Pistons
