Engines and Components Pistons and Piston Rings

United Engine & Machine Co

1 SET 9910HC.STD/1 SET 4000AM8.STD

$456.64

SKU: U00B 9910HCKTM.STD

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

Moderate — 2–4 hours

Description

Keith Black Claimer Pistons offer performance quality for the budget racer or street/performance applications. Hypereutectic 390 alloy with 16% Silicone. All pistons include True-Arc lock Rings which can be used with floating or press pin rod applications. Features cast in symmetrical valve reliefs, Tru-Arc Lock Rings, CNC machined pin bores, Accumulator Groove for compression ring seal, Cast in Oil Returns, Diamond Finished Skirts, Molykote Skirt Coating. Wrist pins and spiral lock included. 5/64 x 5/64 x 3/16 rings not included. Made with Chevy SB 350, Fits SB Chevy 383.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandUnited Engine & Machine Co
Part NumberU00B 9910HCKTM.STD

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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