What is included in this piston set?

This set includes eight JE Pistons designed for a 400 SBC engine. The specific bore size is 4.165 inches, with a .165 dome. Please refer to the product details for exact specifications like wrist pin size and compression height.

What is the benefit of the FSR design?

The Forged Side Relief (FSR) design helps to minimize friction and power loss. It achieves this through a reduced skirt width and a shorter wrist pin, which also contributes to saving weight in the engine.

Are these pistons suitable for all 400 SBC engines?

These pistons are designed for 400 SBC engines and are forged in the USA for high-demand performance applications. However, due to specific build requirements and potential variations, it's always best to verify compatibility with your exact engine configuration and performance goals.

JE Pistons 400 SBC .165 Dome Piston Set 182057

Name: JE Pistons 400 SBC .165 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-165-dome-set-of-8-pistons-t14-295321
Price: 1052.79 USD
Availability: BackOrder

JE Pistons 400 SBC .165 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 .165 Dome Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Set includes eight pistons for a 400 SBC engine.
Features a .165 dome for specific compression ratios.
Forged in the USA from 2618 aluminum for high tensile strength.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Includes a shorter wrist pin to save weight.
May include an accumulator groove to reduce combustion gas pressure and improve ring seal.

This piston set is designed for 400 SBC engines. Check manufacturer specifications to confirm compatibility with your specific engine build.

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Product Details

This is a set of eight JE Pistons, specifically designed for a 400 SBC engine with a .165 dome. You get the pistons themselves, ready for installation into your performance build. These pistons are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines that demand a lot of power and durability.

JE Pistons has been around for a long time, and they've put that experience into these forged pistons. They feature a proprietary Forged Side Relief (FSR) design, which helps cut down on friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight in the process. Depending on the specific application, you might also find an accumulator groove, which helps manage combustion gas pressure to keep the rings seated properly and maintain consistent power. Some applications also include a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

These pistons are made 100% in the USA and are designed for each specific engine and use case to give you the best combination of performance and longevity. Keep in mind that these are not CARB approved and cannot be shipped to California. If you're building a high-performance 400 SBC, these pistons are a solid option for the core of your engine.