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

The FSR design on these JE Pistons features reduced skirt width and a shorter wrist pin. This construction helps to minimize friction and power loss while also saving weight.

Are these pistons coated?

Depending on the specific application, these pistons may come with a skirt coating. This coating is designed to reduce friction and wear on the piston skirts and cylinder walls, and can also help reduce operating noise.

What are the key dimensions for this piston set?

This set is for a 4.310-inch bore with a 1.520-inch compression distance (CD) and a 0.990-inch pin diameter. The dome volume is 43.0 cc.

JE Pistons BBC .570 Dome Piston Set 258266

Name: JE Pistons BBC .570 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-bbc-570-dome-set-of-8-pistons-t14-295738
Price: 1052.79 USD
Availability: BackOrder

JE Pistons BBC .570 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 BBC .570 Dome Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Set of 8 pistons for BBC engines with a 4.310-inch bore.
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 a 0.990-inch pin and a dome volume of 43.0 cc.
May include an accumulator groove to improve ring seal and reduce fluttering.
May include a skirt coating to reduce 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 these BBC pistons. They're built for high-demand performance applications, forged right here in the USA from 2618 aluminum, which gives them the high tensile strength you need when you're pushing your engine hard.

These pistons feature a proprietary Forged Side Relief (FSR) design. This means they have reduced skirt width and a shorter wrist pin, which helps minimize friction and power loss while also saving weight. Depending on the specific application, they might also include an accumulator groove to help reduce combustion gas pressure, leading to better ring seal and more consistent power. Some applications also get a skirt coating that further reduces friction and wear on the cylinder walls, which can also quiet things down a bit.

This set is designed specifically for BBC engines with a 4.310-inch bore. They are a dome piston type, with a volume of 43.0 cc, and come with a 0.990-inch pin. This kit includes all 8 pistons needed for a V8 engine. Keep in mind these are not CARB approved and cannot be shipped to California.