What is the bore size and pin diameter for these pistons?

These pistons have a 4.125 inch bore and utilize a 0.927 inch pin. The compression distance is 1.145 inches.

What material are these pistons made from and why is it important?

They are forged from 2618 aluminum, which offers high tensile strength. This material is chosen for performance applications where the engine will experience high demands and stress.

Are there any special features on these pistons for improved performance?

Yes, they feature JE Pistons' proprietary Forged Side Relief (FSR) design to reduce friction and power loss. Depending on the application, they may also include an accumulator groove for better ring seal and a skirt coating to reduce wear and noise.

JE Pistons 400 SBC Dome Piston Set 232508

Name: JE Pistons 400 SBC DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-dome-set-of-8-pistons-t14-295520
Price: 1129.82 USD
Availability: BackOrder

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

Key Features

Fits 400 SBC engines.
Set includes 8 forged pistons.
Forged in the USA from 2618 aluminum for high tensile strength.
Features proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
Includes accumulator groove (depending on application) for improved ring seal.
Skirt coating (depending on application) reduces friction, wear, and noise.

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Product Details

JE Pistons has been a leader in forged racing pistons for over 75 years, and they've put that experience into this set of 8 pistons for your 400 SBC engine. These aren't just any pistons; they're forged and machined entirely in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines built for demanding performance applications.

This set features JE Pistons' proprietary Forged Side Relief (FSR) design. This means they have a reduced skirt width and use a shorter wrist pin, which helps minimize friction and power loss while also saving weight. Depending on the specific application, these pistons may also include an accumulator groove to help manage combustion gas pressure, leading to better ring seal and more consistent power. Some applications also benefit from a skirt coating that further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life.

These pistons are designed specifically for the 400 SBC engine and the demands of performance use, aiming for an optimal balance of durability and performance. They feature a dome design, a 4.125 inch bore, a 1.145 inch compression distance, and a 0.927 inch pin. Please note that these pistons are not CARB approved and cannot be shipped to California.