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 essential for handling the extreme pressures and temperatures found in high-performance and racing engines.

What is the Forged Side Relief (FSR) design?

The FSR design is a proprietary feature from JE Pistons that reduces the width of the piston skirt. This helps to minimize friction and power loss, while also contributing to overall weight savings for improved engine performance.

Are these pistons compatible with all 350/400 SBC engines?

This set is designed for 350 and 400 small-block Chevy engines with a 4.155-inch bore. It's important to verify your specific engine's bore size and application requirements before installation. Note that these pistons are not CARB approved and cannot be shipped to California.

JE Pistons 350/400 SBC Dome Piston Set 173586

Name: JE Pistons 350/400 SBC DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-350-400-sbc-dome-set-of-8-pistons-t14-295221
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 350/400 SBC 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 350/400 SBC DOME Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Fits 350/400 small-block Chevy engines.
Set includes eight forged dome 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 weight.
Includes an accumulator groove (application dependent) to improve ring seal.
Skirt coating (application dependent) reduces friction and noise.

This piston set is designed for 350 and 400 small-block Chevy engines. Not CARB approved and cannot ship to California.

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Product Details

If you're building a high-performance 350 or 400 small-block Chevy engine, JE Pistons has you covered with this set of eight forged dome pistons. These aren't your average cast pistons; they're built from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines that see a lot of stress and demand consistent power. JE Pistons has been making performance parts for a long time, and they forge and machine these pistons right here in the USA.

What sets these pistons apart is their design, tailored specifically for performance applications. They feature JE's proprietary Forged Side Relief (FSR) design, which uses a reduced skirt width to cut down on friction and power loss, while also saving weight. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to keep your ring seal tight and consistent. Some applications also include a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, which can also lead to a quieter engine operation.

This set is designed for a 4.155-inch bore and includes everything you need for an 8-cylinder engine. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For serious engine builds where durability and performance are key, these JE Pistons are a solid choice.