Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

4218 FORD BOSS 302 ROD 5.155 DOME 6CC (V8) ICON PREMIUM FORGED PISTON SET

$115.68

SKU: U00B IC686.030

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Description

The United Engine & Machine Co IC686.030 is a set of premium forged aluminum pistons designed for high-performance applications. These pistons feature a dome style with two valve reliefs and a skirt coating for enhanced durability.

With a 4.030 in. bore and a 1.540 in. compression height, these pistons are engineered for optimal performance. The -6.00cc piston head volume and 6.5 cc dome volume contribute to a 11.8:1 compression ratio when used with an 88.6 cc head. The forged 2618 alloy construction ensures strength and reliability under demanding conditions.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B IC686.030

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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