What material are these JE Pistons made from?

These pistons are forged from 2618 aluminum. This material is selected for its high tensile strength, which is necessary for high-performance engine applications that experience significant stress.

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

The FSR design helps to minimize friction and power loss by reducing the piston skirt width. It also saves weight by utilizing a shorter wrist pin, contributing to overall engine efficiency and performance.

Are these pistons compatible with all BBC engines?

This specific set is designed for BBC engines with a 4.530 inch bore. While JE Pistons engineers each set for specific applications, it's important to verify that your engine's bore size matches the piston specifications. These are also not CARB approved and cannot be shipped to California.

JE Pistons BBC Dome Piston Set 258234

Name: JE Pistons BBC .515 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-bbc-515-dome-set-of-8-pistons-t14-295706
Price: 1052.79 USD
Availability: BackOrder

JE Pistons BBC .515 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 .515 Dome Set of 8 Pistons. Forged in the USA for high-demand performance.

Key Features

Fits 8-cylinder Big Block Chevrolet (BBC) engines with a 4.530 inch bore.
Set includes 8 forged pistons designed for high-demand performance applications.
Constructed from 2618 aluminum for high tensile strength and durability.
Features JE Pistons' proprietary Forged Side Relief (FSR) design to minimize friction and weight.
Includes a dome with a volume of 42.0 cc and a 0.990 inch wrist pin.
Compression distance is 1.245 inches.

This piston set is designed for 8-cylinder Big Block Chevrolet (BBC) engines with a 4.530 inch bore. Not CARB approved; cannot ship to California.

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Product Details

JE Pistons is known for making strong, reliable forged pistons that have proven themselves on the race track for over 75 years. This set of BBC pistons, part number 258234, is built with that same dedication to performance and durability. They are forged and machined entirely in the USA using 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines pushed to their limits.

These pistons feature JE Pistons' proprietary Forged Side Relief (FSR) design. This means they have a reduced skirt width and a shorter wrist pin, which helps cut down on friction and power loss while also saving weight. Depending on the specific engine application, these pistons may also include an accumulator groove to manage combustion gas pressure, leading to better ring seal and more consistent power. A skirt coating, if included for your application, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life. Each piston is designed specifically for its intended engine and use, ensuring optimized performance and durability.

This set includes eight pistons, each with a 4.530-inch bore and a dome volume of 42.0 cc. The wrist pin is 0.990 inches, and the compression distance is 1.245 inches. Please note that these pistons are not CARB approved and cannot be shipped to California. They are designed for high-demand performance applications where strength and reliability are paramount.