Engines and Components› Pistons and Piston Rings

DSS Racing

DSS Racing FX-Series Piston Set, 4.185 inch Bore

$760.45

SKU: 2-3258-4185

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Overview

The DSS Racing FX-Series pistons are forged from 2618 alloy for increased horsepower potential and durability in demanding engine applications. Designed for naturally aspirated, nitrous, or boosted engines, these pistons feature internal gussets for added strength and CNC milling to reduce weight without compromising integrity. The patented X-Groove skirt design enhances skirt, cylinder, and ring life by minimizing damage from fuel wash down and debris. For stroker engines, the advanced skirt design improves piston stability and ring seal, leading to quieter operation.

These pistons have a bore of 4.185 inches and a stroke of 3.250 inches, suitable for 5.9L/358 cubic inch engines. They are designed with a dish top and three valve reliefs, and have a compression height of 1.165 inches with a piston head volume of +18.00cc. The wrist pin bores are precision honed and accommodate press-fit or floating wrist pins with a diameter of 0.927 inches. The piston rings are 1.20mm x 1.20mm x 3.00mm. Key features include forced pin oiling, drilled bottom land oil drain backs, and high-strength wrist pins. They are sold as a set of 8 and are intended for use with TFS Twisted Wedge cylinder heads or cylinder heads with 20-degree inline valves.
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The DSS Racing FX-Series pistons are forged from 2618 alloy for increased horsepower potential and durability in demanding engine applications. Designed for naturally aspirated, nitrous, or boosted engines, these pistons feature internal gussets for added strength and CNC milling to reduce weight without compromising integrity. The patented X-Groove skirt design enhances skirt, cylinder, and ring life by minimizing damage from fuel wash down and debris. For stroker engines, the advanced skirt design improves piston stability and ring seal, leading to quieter operation. These pistons have a bore of 4.185 inches and a stroke of 3.250 inches, suitable for 5.9L/358 cubic inch engines. They are designed with a dish top and three valve reliefs, and have a compression height of 1.165 inches with a piston head volume of +18.00cc. The wrist pin bores are precision honed and accommodate press-fit or floating wrist pins with a diameter of 0.927 inches. The piston rings are 1.20mm x 1.20mm x 3.00mm. Key features include forced pin oiling, drilled bottom land oil drain backs, and high-strength wrist pins. They are sold as a set of 8 and are intended for use with TFS Twisted Wedge cylinder heads or cylinder heads with 20-degree inline valves.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandDSS Racing
Part Number2-3258-4185
CategoryEngines and Components

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