What material are these pistons made from?

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

What is the Forged Side Relief (FSR) design?

The FSR design is a proprietary JE Pistons feature that minimizes friction and power loss. It achieves this through a reduced skirt width and a shorter wrist pin, which also helps save weight.

Are these pistons legal for use in California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

JE Pistons 400 SBC Dome 18Deg Set of 8 Pistons 213124

Name: JE Pistons 400 SBC DOME 18DEG Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-dome-18deg-set-of-8-pistons-t14-295451
Price: 1129.82 USD
Availability: BackOrder

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

Key Features

Fits 400 SBC engines with a 4.125 inch bore.
Set includes 8 forged pistons.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design for reduced friction and weight.
May include an accumulator groove to improve ring seal and reduce flutter.
May include a skirt coating to reduce friction, wear, and noise.

This piston set is designed for 400 SBC engines with a 4.125 inch bore. Please verify compatibility with your specific engine build.

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Product Details

JE Pistons is known for making well-built forged racing pistons, drawing on over 75 years of experience. They've applied that knowledge to this set of 8 pistons for a 400 SBC engine, designed for high-demand performance applications. These pistons are forged and machined entirely in the USA using 2618 aluminum, which gives them the strong tensile strength needed for serious builds.

This set features JE Pistons' proprietary Forged Side Relief (FSR) design. This means they have a reduced skirt width to minimize friction and power loss, and a shorter wrist pin to save even more weight. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, which can prevent ring flutter and improve ring seal for more consistent power. Some applications also get a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, while also cutting down on operating noise. JE Pistons designs each set specifically for the intended engine and use, aiming for the best balance of performance and durability.

This kit is for a 4.125 inch bore with a 1.187 inch compression distance and includes a 0.927 inch pin. Please note that these pistons are not CARB approved and cannot be shipped to California.