Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

5817 FORD 408W/418W ROD 6.250/6.200 FLAT TOP +4.8CC 2V ICON PREMIUM FORGED PISTON SET

$114.57

SKU: U00B IC721.030

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Description

The United Engine & Machine Co. IC721.030 is a set of forged pistons designed for performance engine builds. Constructed from a 2618 alloy with 1% silicon content, these pistons are heat-treated for durability. They feature a flat top piston style and are skirt coated.

These pistons are designed for a 4.030 inch bore and a 4.000 inch stroke, with a 6.200 inch rod length. The notes indicate they are centered for a 408 pin and are intended for use with a 351W block.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B IC721.030

Buy with Confidence

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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