What materials are these pistons made from?

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

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

The 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.

Are these pistons legal for use in California?

No, this piston set is not CARB approved and cannot be shipped to California due to emissions regulations.

JE Pistons 400 SBC Dome Piston Set 182024

Name: JE Pistons 400 SBC .175 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-175-dome-set-of-8-pistons-t14-295294
Price: 1052.79 USD
Availability: BackOrder

JE Pistons 400 SBC .175 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 .175 Dome Set of 8 Pistons. Forged from 2618 aluminum for high-demand performance.

Key Features

This is a set of 8 pistons for a 400 SBC engine.
Each piston has a .175 dome volume.
The bore size for these pistons is 4.125 inches.
They are forged in the USA using 2618 aluminum for high tensile strength.
Features a proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
May include an accumulator groove to improve ring seal and reduce flutter.

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

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Product Details

This is a set of eight forged pistons from JE Pistons, designed for a 400 SBC engine. You get pistons with a .175 dome volume, a 4.125 inch bore size, a 1.000 inch compression distance, and a 0.927 inch wrist pin. These pistons are built for high-demand performance applications, using 2618 aluminum which offers high tensile strength.

JE Pistons has been making forged racing pistons for over 75 years, and these are engineered, forged, and machined entirely in the USA. They feature a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, saving weight in the process. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, preventing ring flutter and improving ring seal for consistent power. Some applications also feature a skirt coating designed to reduce friction and wear on the piston skirts and cylinder walls, which can also help lower operating noise.

These pistons are designed specifically for each engine and use application to provide optimized performance and durability. Please note that this set is not CARB approved and cannot be shipped to California.