Exterior Components Body Panels and Components

United Engine & Machine Co

PONTIAC 400 ROD 6.630 FLAT TOP +6CC 2V KB HYPER PISTON SET

$71.46

SKU: U00B KB133.040

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

Advanced — 4+ hours

Description

The United Engine & Machine Co KB133.040 is a set of 8 hypereutectic aluminum pistons designed for Pontiac V8 engines. These pistons feature a flat top with two valve reliefs and have a 4.160 inch bore with a -6.00cc piston head volume. They are intended for applications with a 10.250 inch deck height and 20-degree heads.

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 KB133.040

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