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

These pistons are designed for a 4.625 inch bore. The wrist pin diameter is 0.990 inches.

What materials are these pistons made from?

These pistons are forged from 2618 aluminum, which is known for its high tensile strength suitable for high-demand performance applications.

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 BBC .510 Dome Piston Set 258237

Name: JE Pistons BBC .510 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-bbc-510-dome-set-of-8-pistons-t14-295709
Price: 1052.79 USD
Availability: BackOrder

JE Pistons BBC .510 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 .510 Dome Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Fits 8-cylinder BBC engines with a 4.625 inch bore.
Forged in the USA using 2618 aluminum for high tensile strength in performance applications.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss with reduced skirt width and a shorter wrist pin.
Accumulator groove (application dependent) helps reduce combustion gas pressure, improving ring seal.
Skirt coating (application dependent) reduces friction and wear, and lowers operating noise.
Each piston is designed specifically for its engine and use application for optimized performance and durability.

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Product Details

JE Pistons is known for its forged racing pistons, with over 75 years of experience building them for domestic applications. This set of eight BBC pistons is engineered and forged right here in the USA using 2618 aluminum, which gives them the high tensile strength needed for high-demand performance builds. They're designed specifically for your engine and its intended use, aiming for the best balance of durability and performance.

These pistons feature a proprietary Forged Side Relief (FSR) design. This means they have reduced skirt width and use a shorter wrist pin, which helps minimize friction and power loss while also saving weight. Depending on your specific application, you might also find an accumulator groove, which helps control combustion gas pressure to reduce ring flutter and improve ring seal for consistent power. Some applications also include a skirt coating that cuts down on friction and wear on the piston skirts and cylinder walls, which also helps reduce operating noise.

This set is for an 8-cylinder engine with a 4.625-inch bore. The kit includes pistons, wrist pins, and locks. Please note that these pistons are not CARB approved and cannot be shipped to California.