What material are these pistons made from and why is it important?

These pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is crucial for handling the extreme pressures and temperatures found in high-performance racing engines.

What is the Forged Side Relief (FSR) design?

The FSR design is a proprietary forging technique used by JE Pistons. It helps reduce friction and power loss by using a narrower piston skirt and a shorter wrist pin, which also contributes to saving weight in the rotating assembly.

Are any special tools or components needed for installation?

Installation of performance pistons typically requires specialized tools and knowledge, such as piston ring compressors and proper torque wrenches. It is recommended to consult the manufacturer's installation instructions or a qualified mechanic for proper fitment and assembly.

JE Pistons 400 SBC Dome Piston Set 242891

Name: JE Pistons 400 SBC DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-dome-set-of-8-pistons-t14-295548
Price: 1052.79 USD
Availability: BackOrder

JE Pistons 400 SBC DOME Set of 8 Pistons

$1052.79

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

JE Pistons 400 SBC DOME Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

Fits 400 small block Chevy engines.
Set includes 8 forged pistons.
Forged in the USA using 2618 aluminum for high tensile strength.
Features JE Pistons' proprietary Forged Side Relief (FSR) design to minimize friction and save weight.
Pistons have a 4.155 inch bore and a dome shape with 12.8cc volume.
Designed specifically for each engine and use application for optimized performance and durability.

These pistons are designed for 400 small block Chevy engines. Please verify compatibility with your specific engine build.

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Product Details

If you're rebuilding a 400 small block Chevy engine for serious performance, a strong set of pistons is where you start. These JE Pistons are forged from 2618 aluminum, a material known for its high tensile strength, making them well-suited for the demands of high-performance applications. They're designed specifically for the 400 SBC engine, ensuring they work with your build.

JE Pistons uses their 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 help manage combustion gas pressure, which can improve ring seal and keep power consistent. Some applications also feature a skirt coating that further reduces friction and wear on the cylinder walls, leading to quieter operation and longer life.

These pistons are made 100% in the USA, from forging to machining. This set includes eight pistons, each with a 4.155-inch bore and a dome shape with a 12.8cc volume, designed to work with a 0.927-inch pin. Please note that these pistons are not CARB approved and cannot be shipped to California.