What material are these JE Pistons made from?

These pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is essential for high-demand performance applications like racing engines.

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

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

Are these pistons compatible with all 400 SBC engines?

These pistons are designed specifically for 400 SBC applications with a 4.125-inch bore. It's always recommended to verify the specific dimensions and requirements for your engine build to ensure proper fitment.

JE Pistons 400SBC 18DEG DOME Piston Set 218594

Name: JE Pistons 400SBC 18DEG DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400sbc-18deg-dome-set-of-8-pistons-t14-295481
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 400SBC 18DEG DOME 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 400SBC 18DEG DOME Set of 8 Pistons. Forged from 2618 aluminum for high-demand performance.

Key Features

Set of 8 forged pistons for 400 SBC engines.
Made in the USA from 2618 aluminum for high tensile strength.
Features a proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes a 0.927-inch pin and a 4.125-inch bore size.
May include an accumulator groove to reduce combustion gas pressure and improve ring seal.
Skirt coating (application dependent) reduces friction and wear while lowering noise.

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Product Details

If you're building a high-performance 400 SBC engine, you need pistons that can handle the stress. This set of eight forged pistons from JE Pistons is designed specifically for that kind of demanding application. They're made from 2618 aluminum, which gives them the high tensile strength needed to withstand the pressures and heat of serious performance builds.

JE Pistons has been in the game for over 75 years, and they build these pistons right here in the USA. They use a proprietary Forged Side Relief (FSR) design that helps minimize friction and power loss by reducing skirt width, and they also use a shorter wrist pin to save weight. Depending on the specific application, you might also find an accumulator groove to help reduce 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, while also cutting down on operating noise.

This set is for an 8-cylinder engine with a 4.125-inch bore and includes the necessary components for a complete rebuild. Keep in mind that these pistons are not CARB approved and cannot be shipped to California.