Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

CHRYSLER 493 ROD 6.768 STEP DISH +23.7CC 2V ICON PREMIUM FORGED PISTON SET

$110.69

SKU: U00B IC840.040

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 IC840.040 is a set of forged aluminum pistons designed for Mopar B-Series engines. These pistons feature a step head design with two valve reliefs and a compression height of 1.869 inches. They have a bore size of 4.360 inches and a dish volume of 23.7cc. The ring grooves measure 1/16 x 1/16 x 3/16 inches.

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 IC840.040

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