What is the purpose of the Forged Side Relief (FSR) design?

The FSR design minimizes friction and power loss by reducing the piston skirt width. It also helps save weight by utilizing a shorter wrist pin, contributing to overall engine efficiency.

Are these pistons suitable for daily driving or only racing applications?

While designed for high-demand performance and racing applications, features like skirt coatings (if included for your application) and the FSR design can also reduce friction and noise, making them suitable for powerful street engines as well.

What does it mean that these pistons are not CARB approved?

CARB (California Air Resources Board) approval means a part meets specific emissions standards for use in California. Since these pistons are not CARB approved, they cannot be legally shipped to or installed in vehicles registered in California.

JE Pistons 400 SBC Dome Piston Set - 170752

Name: JE Pistons 400 SBC DOME -12 Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-dome-12-set-of-8-pistons-t14-295186
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 400 SBC DOME -12 Set of 8 Pistons

$1129.82

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 -12 Set of 8 Pistons. Forged 2618 aluminum for high-demand performance.

Key Features

Fits 8-cylinder engines with a 4.155 inch bore.
Forged from 2618 aluminum for high tensile strength in performance applications.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Includes a dome piston design with a 2.00 cc volume.
Features a 0.927 inch wrist pin diameter.
Made 100% in the USA.

This piston set is designed for 8-cylinder engines with a 4.155 inch bore. Check manufacturer specifications for full compatibility with your specific engine build.

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Product Details

If you're building a high-performance 400 Small Block Chevy engine, you need pistons that can handle the stress and deliver consistent power. This set of eight dome pistons from JE Pistons is designed specifically for that kind of demanding application. They're forged from 2618 aluminum, a material known for its high tensile strength, which is crucial when you're pushing an engine hard, whether on the drag strip or in a heavy-duty truck.

JE Pistons brings over 75 years of experience to the table, and it shows in features like their proprietary Forged Side Relief (FSR) design. This helps minimize friction and power loss by reducing skirt width, and it also saves weight with a shorter wrist pin. Depending on the specific application, these pistons might also include an accumulator groove to help manage combustion gas pressure, improving ring seal and keeping power consistent. Some applications also feature a skirt coating that further reduces friction and wear on the cylinder walls, which can also lead to quieter operation.

Every part of this piston set is made in the USA, from the initial forging to the final machining. This ensures a high level of quality control and allows JE Pistons to tailor the design for optimal performance and durability for your specific engine build. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a serious engine build, these pistons are a solid option.