Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

CLAIMER PISTON KIT SBC 377

$417.00

SKU: U00B 9907HCKTM.040

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This KB Performance Pistons Claimer series piston and ring kit features hypereutectic aluminum alloy construction, providing excellent strength and durability for street and moderate competition applications. Designed for Small Block Chevy engines, these flat-top pistons have a 5cc volume and a 4.165-inch bore. They are compatible with 5.565-inch connecting rod lengths. The kit includes pistons, wrist pins, pin retainers, and a matching ring set. Ideal for rebuilds and performance upgrades, offering improved power and efficiency.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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 9907HCKTM.040

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.

View Full Return Policy