Engines and Components Pistons and Piston Rings

United Engine & Machine Co

1 SET 9908HC.STD/1 SET 4000AM8.STD

$415.68

SKU: U00B 9908HCKTM.STD

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Keith Black Claimer Pistons 9908HC-STD are hypereutectic 390 alloy pistons with 16% Silicone, designed for Chevrolet Small Block 350 engines (5.7L) with a 4.000" bore, 3.480" stroke, and 6.000" rod length. These pistons are suitable for budget racer or street/performance applications and include True-Arc lock rings, CNC machined pin bores, an accumulator groove, cast-in oil returns, diamond finished skirts, molykote skirt coating, wrist pins, and spiral locks. Rings (5/64 x 5/64 x 3/16) are not included.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B 9908HCKTM.STD

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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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