What material 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.

Are these pistons suitable for all engine builds?

These pistons are designed specifically for each engine and use application to provide optimized performance and durability. They are not CARB approved and cannot be shipped to California.

What is the Forged Side Relief (FSR) design?

The FSR design is a proprietary forging from JE Pistons that helps minimize friction and power loss. It achieves this through a reduced skirt width and a shorter wrist pin, which also contributes to saving weight.

JE Pistons BBC Inv Dome Piston Set 257954

Name: JE Pistons BBC INV DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-bbc-inv-dome-set-of-8-pistons-t14-295638
Price: 1052.79 USD
Availability: BackOrder

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

Key Features

Fits 8-cylinder engines with a 4.560 inch bore.
Features a 1.520 inch compression distance and a 0.990 inch wrist pin.
Forged in the USA using 2618 aluminum for high tensile strength.
Includes proprietary Forged Side Relief (FSR) design to minimize friction and power loss.
May include an accumulator groove to reduce combustion gas pressure and improve ring seal.
May include a skirt coating to reduce friction and wear, and quiet operation.

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Product Details

JE Pistons is known for making well-built forged racing pistons, drawing on over 75 years of experience. They've applied that knowledge to this set of BBC Inv Dome pistons, designed for high-demand performance applications. These pistons are engineered, forged, and machined 100% in the USA, using 2618 aluminum which gives them the strong tensile strength needed for serious builds.

This set features JE Pistons' proprietary Forged Side Relief (FSR) forging design. This design helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, which also saves weight. Depending on the specific application, these pistons may also include an accumulator groove to help reduce combustion gas pressure, leading to better ring seal and consistent power. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, while also helping to quiet down operating noise.

This kit is designed specifically for each engine and use application, aiming for an optimized balance of performance and durability. It's important to note that these pistons are not CARB approved and cannot be shipped to California. They are designed for 8-cylinder engines with a 4.560-inch bore, a 1.520-inch compression distance, and a 0.990-inch wrist pin. This set includes 8 pistons.