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Engines and Components› Pistons and Piston Rings

DSS Racing

DSS Racing FX-Series Piston Set, 4.155 in. Bore

$995.47 $994.45 Save $1.02

SKU: 3-3722-4155

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Overview

The DSS Racing FX-Series pistons are designed for high-performance engine builds, specifically for Ford 351C stroker applications. These pistons feature a 4.155 in. bore and are constructed from a forged 2618 alloy for enhanced strength and durability. The -18cc dish top includes two valve reliefs, accommodating various camshaft profiles.

With a 4.000 in. stroke and a 6.000 in. rod length, these pistons contribute to a 7.1L/434 cubic inch displacement. The FX-Series incorporates patented X-Groove skirt design for improved stability and ring seal in stroker engines, reducing wear from fuel washdown and debris. Features like forced pin oiling, precision-honed pin bores, and XR Extreme duty wrist pins are included for longevity.
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The DSS Racing FX-Series pistons are designed for high-performance engine builds, specifically for Ford 351C stroker applications. These pistons feature a 4.155 in. bore and are constructed from a forged 2618 alloy for enhanced strength and durability. The -18cc dish top includes two valve reliefs, accommodating various camshaft profiles. With a 4.000 in. stroke and a 6.000 in. rod length, these pistons contribute to a 7.1L/434 cubic inch displacement. The FX-Series incorporates patented X-Groove skirt design for improved stability and ring seal in stroker engines, reducing wear from fuel washdown and debris. Features like forced pin oiling, precision-honed pin bores, and XR Extreme duty wrist pins are included for longevity.

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 Number3-3722-4155
CategoryEngines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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