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

The FSR design helps minimize friction and power loss by reducing the piston skirt width. It also contributes to weight savings by utilizing a shorter wrist pin.

What is the purpose of the accumulator groove and skirt coating?

The accumulator groove can help reduce combustion gas pressure, which improves ring seal and prevents ring flutter. The skirt coating reduces friction and wear on the piston skirts and cylinder walls, while also helping to lower operating noise.

What does the 'Flat Top, -1.8 cc' specification mean for my engine build?

This indicates the piston crown is flat and has a slight dish volume of -1.8 cubic centimeters. This specification is important for calculating your engine's compression ratio when planning your build.

JE Pistons Forged Piston Set 177848 - 350 SBC

Name: JE Pistons 350 SBC ULTRA FT GP Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-350-sbc-ultra-ft-gp-set-of-8-pistons-t14-295233
Price: 1129.82 USD
Availability: BackOrder

JE Pistons 350 SBC ULTRA FT GP 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 350 SBC ULTRA FT GP Set of 8 Pistons. Forged from 2618 aluminum for high-demand performance.

Key Features

Fits 350 Small Block Chevy engines with a 4.030 inch bore.
Forged from 2618 aluminum for high tensile strength and durability in performance applications.
Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
Features a flat top design with a -1.8 cc volume.
Includes a 0.927 inch wrist pin.
Manufactured 100% in the USA.

This piston set is designed for 350 Small Block Chevy engines with a 4.030 inch bore. Please verify compatibility with your specific engine build.

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Product Details

When you're rebuilding the top end of your 350 Small Block Chevy and pushing the limits, the right pistons are crucial. These JE Pistons ULTRA FT GP pistons are forged from 2618 aluminum, a material known for its high tensile strength, making them well-suited for high-demand performance applications where durability and reliability are paramount. They are engineered and machined 100% in the USA, drawing on JE Pistons' extensive experience in racing to optimize performance and longevity.

JE Pistons incorporates several advanced design features to help you get the most out of your engine. The proprietary Forged Side Relief (FSR) forging design helps minimize friction and power loss by reducing skirt width, and it also saves weight with a shorter wrist pin. Depending on the specific application, these pistons may also feature an accumulator groove, which helps reduce pressure from combustion gases, preventing ring flutter and improving ring seal for consistent power delivery. A skirt coating, also application-dependent, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

This set is designed specifically for the 350 SBC engine with a 4.030 inch bore. It's important to note that these pistons are not CARB approved and cannot be shipped to California. If you're building a high-performance engine, these pistons are a solid choice for their robust construction and thoughtful design features.