Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

KB HYP PISTON KIT SBC 383

$597.56

SKU: U00B KB302KTM.040

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Keith Black KB302KTM.040 Piston Kit is engineered for high-performance applications in Small Block Chevrolet 350 engines modified to a 383 cubic inch stroker configuration. These pistons are cast from a low-expansion 390 alloy with 16 percent silicon, enabling tighter piston-to-wall running clearances for improved efficiency and power.

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 KB302KTM.040

Videos

The Shocking Truth About the 383 Stroker – Built by Gearheads, Not by GM!

The Shocking Truth About the 383 Stroker – Built by Gearheads, Not by GM!
Installing Keith Black Pistons in the DZ292 Small Block Chevy #engine

Installing Keith Black Pistons in the DZ292 Small Block Chevy #engine

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