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

The FSR forging design from JE Pistons helps minimize friction and power loss by reducing the piston skirt width. It also contributes to weight savings by utilizing a shorter wrist pin.

Are these pistons compatible with all big block Chevrolet engines?

This set is designed for big block Chevrolet engines with a 4.530 inch bore. While they are engineered for performance, it's important to verify that this bore size and the piston dish volume (-11.5cc) are correct for your specific engine build.

What does the accumulator groove do?

The accumulator groove, found on some applications, helps reduce pressure from combustion gases. This can lead to reduced ring fluttering and an improved ring seal, contributing to consistent power output.

JE Pistons BBC Inv Dome Piston Set 257957

Name: JE Pistons BBC INV DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-bbc-inv-dome-set-of-8-pistons-t14-295641
Price: 1052.79 USD
Availability: BackOrder

JE Pistons BBC INV 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 BBC INV DOME Set of 8 Pistons. Forged from 2618 aluminum for high-demand performance.

Key Features

Set includes 8 pistons for a V8 engine.
Forged from 2618 aluminum for high tensile strength in performance applications.
Features JE Pistons' proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Designed specifically for each engine and use application for optimized performance and durability.
Includes a 4.530 inch bore size and a -11.5cc dish volume.
Made 100% in the USA.

This piston set is designed for big block Chevrolet (BBC) engines with a 4.530 inch bore. Please verify compatibility with your specific engine build.

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Product Details

If you're building a high-performance big block Chevrolet engine, you need pistons that can handle the stress and deliver consistent power. This set of 8 JE Pistons is forged from 2618 aluminum, a material known for its high tensile strength, making it ideal for demanding performance applications. These pistons are designed specifically for your engine and intended use, ensuring optimized performance and durability.

JE Pistons brings over 75 years of experience to the table with their proprietary Forged Side Relief (FSR) forging design. This design helps minimize friction and power loss by reducing skirt width, and it also saves weight thanks to a shorter wrist pin. Depending on the specific application, these pistons may also feature an accumulator groove to reduce combustion gas pressure, which helps prevent ring flutter and improves ring seal for reliable power. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, leading to quieter operation.

Every part of this piston set is made in the USA, from the initial forging to the final machining. This set is designed for a 4.530 inch bore and includes a -11.5cc dish volume. Please note that these pistons are not CARB approved and cannot be shipped to California.